Home / 81,984.18-122,976.42-22,819.86

Finding the Fourth Proportional to 81,984.18, 122,976.42 and 22,819.86

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Solution

The fourth proportional to 81,984.18, 122,976.42 and 22,819.86 is: 34,229.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,984.18 : 122,976.42 = 22,819.86 : x
  2. Step 2: Convert to fraction form
    81,984.18/122,976.42 = 22,819.86/x
  3. Step 3: Cross multiply
    81,984.18x = 122,976.42 × 22,819.86
  4. Step 4: Simplify right side
    81,984.18x = 2,806,304,687.70
  5. Step 5: Solve for x
    x = 2,806,304,687.70/81,984.18
  6. Step 6: Final answer
    x = 34,229.83

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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.