Finding the Fourth Proportional to 86,574.48, 129,872.68 and 27,388.76
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Solution
The fourth proportional to 86,574.48, 129,872.68 and 27,388.76 is: 41,086.61
Step by Step Solution
- Step 1: Write the proportion equation
86,574.48 : 129,872.68 = 27,388.76 : x - Step 2: Convert to fraction form
86,574.48/129,872.68 = 27,388.76/x - Step 3: Cross multiply
86,574.48x = 129,872.68 × 27,388.76 - Step 4: Simplify right side
86,574.48x = 3,557,051,663.08 - Step 5: Solve for x
x = 3,557,051,663.08/86,574.48 - Step 6: Final answer
x = 41,086.61
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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.