Finding the Fourth Proportional to 81,714.98, 122,358.62 and 53,546.42
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Solution
The fourth proportional to 81,714.98, 122,358.62 and 53,546.42 is: 80,179.50
Step by Step Solution
- Step 1: Write the proportion equation
81,714.98 : 122,358.62 = 53,546.42 : x - Step 2: Convert to fraction form
81,714.98/122,358.62 = 53,546.42/x - Step 3: Cross multiply
81,714.98x = 122,358.62 × 53,546.42 - Step 4: Simplify right side
81,714.98x = 6,551,866,057.14 - Step 5: Solve for x
x = 6,551,866,057.14/81,714.98 - Step 6: Final answer
x = 80,179.50
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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.