75.7 is what percent of 83.7 - step by step solution

To get the solution, we are looking for, we need to point out what we know.

1. We assume, that the number 83.7 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 83.7, so we can write it down as 100%=83.7.
4. We know, that x% equals 75.7 of the output value, so we can write it down as x%=75.7.
5. Now we have two simple equations:
1) 100%=83.7
2) x%=75.7
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%=83.7/75.7
6. Now we just have to solve the simple equation, and we will get the solution we are looking for.

7. Solution for 75.7 is what percent of 83.7

100%/x%=83.7/75.7
(100/x)*x=(83.7/75.7)*x       - we multiply both sides of the equation by x
100=1.105680317041*x       - we divide both sides of the equation by (1.105680317041) to get x
100/1.105680317041=x
90.442054958184=x
x=90.442054958184

now we have:
75.7 is 90.442054958184% of 83.7