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Finding the Fourth Proportional to 80,212.67, 120,437.28 and 44,743.29

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Solution

The fourth proportional to 80,212.67, 120,437.28 and 44,743.29 is: 67,180.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,212.67 : 120,437.28 = 44,743.29 : x
  2. Step 2: Convert to fraction form
    80,212.67/120,437.28 = 44,743.29/x
  3. Step 3: Cross multiply
    80,212.67x = 120,437.28 × 44,743.29
  4. Step 4: Simplify right side
    80,212.67x = 5,388,759,319.95
  5. Step 5: Solve for x
    x = 5,388,759,319.95/80,212.67
  6. Step 6: Final answer
    x = 67,180.90

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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.