87.8 is what percent of 286 - 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 286 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 286, so we can write it down as 100%=286.
4. We know, that x% equals 87.8 of the output value, so we can write it down as x%=87.8.
5. Now we have two simple equations:
1) 100%=286
2) x%=87.8
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%=286/87.8
6. Now we just have to solve the simple equation, and we will get the solution we are looking for.

7. Solution for 87.8 is what percent of 286

100%/x%=286/87.8
(100/x)*x=(286/87.8)*x       - we multiply both sides of the equation by x
100=3.2574031890661*x       - we divide both sides of the equation by (3.2574031890661) to get x
100/3.2574031890661=x
30.699300699301=x
x=30.699300699301

now we have:
87.8 is 30.699300699301% of 286