Finding the Fourth Proportional to 86,115.28, 129,052.62 and 41,730.26
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Solution
The fourth proportional to 86,115.28, 129,052.62 and 41,730.26 is: 62,537.09
Step by Step Solution
- Step 1: Write the proportion equation
86,115.28 : 129,052.62 = 41,730.26 : x - Step 2: Convert to fraction form
86,115.28/129,052.62 = 41,730.26/x - Step 3: Cross multiply
86,115.28x = 129,052.62 × 41,730.26 - Step 4: Simplify right side
86,115.28x = 5,385,399,386.28 - Step 5: Solve for x
x = 5,385,399,386.28/86,115.28 - Step 6: Final answer
x = 62,537.09
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.