Finding the Fourth Proportional to 86,048.72, 129,053.68 and 36,185.12
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Solution
The fourth proportional to 86,048.72, 129,053.68 and 36,185.12 is: 54,269.52
Step by Step Solution
- Step 1: Write the proportion equation
86,048.72 : 129,053.68 = 36,185.12 : x - Step 2: Convert to fraction form
86,048.72/129,053.68 = 36,185.12/x - Step 3: Cross multiply
86,048.72x = 129,053.68 × 36,185.12 - Step 4: Simplify right side
86,048.72x = 4,669,822,897.24 - Step 5: Solve for x
x = 4,669,822,897.24/86,048.72 - Step 6: Final answer
x = 54,269.52
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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.