We assume, that the number 51 is 100% - because it's the output value of the task. 2. We assume, that x is the value we are looking for. 3. If 100% equals 51, so we can write it down as 100%=51. 4. We know, that x% equals 34 of the output value, so we can write it down as x%=34. 5. Now we have two simple equations: 1) 100%=51 2) x%=34 where left sides of both of them have the same units, and both right sides have the same units, so we can do something like that: 100%/x%=51/34 6. Now we just have to solve the simple equation, and we will get the solution we are looking for.
7. Solution for 34 is what percent of 51
100%/x%=51/34 (100/x)x=(51/34)x - we multiply both sides of the equation by x 100=1.5*x - we divide both sides of the equation by (1.5) to get x 100/1.5=x 66.6666666667=x x=66.6666666667
