Finding the Fourth Proportional to 86,348.19, 129,439.17 and 44,248.17
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Solution
The fourth proportional to 86,348.19, 129,439.17 and 44,248.17 is: 66,329.66
Step by Step Solution
- Step 1: Write the proportion equation
86,348.19 : 129,439.17 = 44,248.17 : x - Step 2: Convert to fraction form
86,348.19/129,439.17 = 44,248.17/x - Step 3: Cross multiply
86,348.19x = 129,439.17 × 44,248.17 - Step 4: Simplify right side
86,348.19x = 5,727,446,398.82 - Step 5: Solve for x
x = 5,727,446,398.82/86,348.19 - Step 6: Final answer
x = 66,329.66
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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.