Finding the Fourth Proportional to 71,234.20, 106,876.08 and 26,873.74
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Solution
The fourth proportional to 71,234.20, 106,876.08 and 26,873.74 is: 40,319.96
Step by Step Solution
- Step 1: Write the proportion equation
71,234.20 : 106,876.08 = 26,873.74 : x - Step 2: Convert to fraction form
71,234.20/106,876.08 = 26,873.74/x - Step 3: Cross multiply
71,234.20x = 106,876.08 × 26,873.74 - Step 4: Simplify right side
71,234.20x = 2,872,159,986.14 - Step 5: Solve for x
x = 2,872,159,986.14/71,234.20 - Step 6: Final answer
x = 40,319.96
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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.