Finding the Fourth Proportional to 86,449.20, 129,676.68 and 24,114.48
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Solution
The fourth proportional to 86,449.20, 129,676.68 and 24,114.48 is: 36,172.52
Step by Step Solution
- Step 1: Write the proportion equation
86,449.20 : 129,676.68 = 24,114.48 : x - Step 2: Convert to fraction form
86,449.20/129,676.68 = 24,114.48/x - Step 3: Cross multiply
86,449.20x = 129,676.68 × 24,114.48 - Step 4: Simplify right side
86,449.20x = 3,127,085,706.33 - Step 5: Solve for x
x = 3,127,085,706.33/86,449.20 - Step 6: Final answer
x = 36,172.52
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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.