4.21 is what percent of 289.59 - 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 289.59 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 289.59, so we can write it down as 100%=289.59.
4. We know, that x% equals 4.21 of the output value, so we can write it down as x%=4.21.
5. Now we have two simple equations:
1) 100%=289.59
2) x%=4.21
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%=289.59/4.21
6. Now we just have to solve the simple equation, and we will get the solution we are looking for.

7. Solution for 4.21 is what percent of 289.59

100%/x%=289.59/4.21
(100/x)*x=(289.59/4.21)*x       - we multiply both sides of the equation by x
100=68.78622327791*x       - we divide both sides of the equation by (68.78622327791) to get x
100/68.78622327791=x
1.4537794813357=x
x=1.4537794813357

now we have:
4.21 is 1.4537794813357% of 289.59