Finding the Fourth Proportional to 77,705.17, 107,232.97 and 43,713.68
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Solution
The fourth proportional to 77,705.17, 107,232.97 and 43,713.68 is: 60,324.79
Step by Step Solution
- Step 1: Write the proportion equation
77,705.17 : 107,232.97 = 43,713.68 : x - Step 2: Convert to fraction form
77,705.17/107,232.97 = 43,713.68/x - Step 3: Cross multiply
77,705.17x = 107,232.97 × 43,713.68 - Step 4: Simplify right side
77,705.17x = 4,687,547,736.03 - Step 5: Solve for x
x = 4,687,547,736.03/77,705.17 - Step 6: Final answer
x = 60,324.79
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.