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Finding the Fourth Proportional to 82,489.92, 123,727.84 and 26,327.76

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Solution

The fourth proportional to 82,489.92, 123,727.84 and 26,327.76 is: 39,489.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,489.92 : 123,727.84 = 26,327.76 : x
  2. Step 2: Convert to fraction form
    82,489.92/123,727.84 = 26,327.76/x
  3. Step 3: Cross multiply
    82,489.92x = 123,727.84 × 26,327.76
  4. Step 4: Simplify right side
    82,489.92x = 3,257,476,876.84
  5. Step 5: Solve for x
    x = 3,257,476,876.84/82,489.92
  6. Step 6: Final answer
    x = 39,489.39

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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.