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Finding the Fourth Proportional to 80,279.53, 120,494.03 and 40,866.14

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Solution

The fourth proportional to 80,279.53, 120,494.03 and 40,866.14 is: 61,337.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,279.53 : 120,494.03 = 40,866.14 : x
  2. Step 2: Convert to fraction form
    80,279.53/120,494.03 = 40,866.14/x
  3. Step 3: Cross multiply
    80,279.53x = 120,494.03 × 40,866.14
  4. Step 4: Simplify right side
    80,279.53x = 4,924,125,996.05
  5. Step 5: Solve for x
    x = 4,924,125,996.05/80,279.53
  6. Step 6: Final answer
    x = 61,337.26

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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.