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Finding the Fourth Proportional to 81,472.74, 122,209.22 and 22,308.92

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Solution

The fourth proportional to 81,472.74, 122,209.22 and 22,308.92 is: 33,463.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,472.74 : 122,209.22 = 22,308.92 : x
  2. Step 2: Convert to fraction form
    81,472.74/122,209.22 = 22,308.92/x
  3. Step 3: Cross multiply
    81,472.74x = 122,209.22 × 22,308.92
  4. Step 4: Simplify right side
    81,472.74x = 2,726,355,906.22
  5. Step 5: Solve for x
    x = 2,726,355,906.22/81,472.74
  6. Step 6: Final answer
    x = 33,463.41

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1.5x scale

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.