Finding the Fourth Proportional to 92,424.62, 138,714.69 and 86,592.62
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Solution
The fourth proportional to 92,424.62, 138,714.69 and 86,592.62 is: 129,961.78
Step by Step Solution
- Step 1: Write the proportion equation
92,424.62 : 138,714.69 = 86,592.62 : x - Step 2: Convert to fraction form
92,424.62/138,714.69 = 86,592.62/x - Step 3: Cross multiply
92,424.62x = 138,714.69 × 86,592.62 - Step 4: Simplify right side
92,424.62x = 12,011,668,439.59 - Step 5: Solve for x
x = 12,011,668,439.59/92,424.62 - Step 6: Final answer
x = 129,961.78
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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.