4.3 is what percent of 7.8 - 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 7.8 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 7.8, so we can write it down as 100%=7.8.
4. We know, that x% equals 4.3 of the output value, so we can write it down as x%=4.3.
5. Now we have two simple equations:
1) 100%=7.8
2) x%=4.3
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%=7.8/4.3
6. Now we just have to solve the simple equation, and we will get the solution we are looking for.

7. Solution for 4.3 is what percent of 7.8

100%/x%=7.8/4.3
(100/x)*x=(7.8/4.3)*x       - we multiply both sides of the equation by x
100=1.8139534883721*x       - we divide both sides of the equation by (1.8139534883721) to get x
100/1.8139534883721=x
55.128205128205=x
x=55.128205128205

now we have:
4.3 is 55.128205128205% of 7.8