Finding the Fourth Proportional to 77,705.13, 107,232.93 and 43,713.65
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Solution
The fourth proportional to 77,705.13, 107,232.93 and 43,713.65 is: 60,324.75
Step by Step Solution
- Step 1: Write the proportion equation
77,705.13 : 107,232.93 = 43,713.65 : x - Step 2: Convert to fraction form
77,705.13/107,232.93 = 43,713.65/x - Step 3: Cross multiply
77,705.13x = 107,232.93 × 43,713.65 - Step 4: Simplify right side
77,705.13x = 4,687,542,770.49 - Step 5: Solve for x
x = 4,687,542,770.49/77,705.13 - Step 6: Final answer
x = 60,324.75
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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.