Home / 89,456.05-123,397.95-55,863.73

Finding the Fourth Proportional to 89,456.05, 123,397.95 and 55,863.73

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Solution

The fourth proportional to 89,456.05, 123,397.95 and 55,863.73 is: 77,059.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,456.05 : 123,397.95 = 55,863.73 : x
  2. Step 2: Convert to fraction form
    89,456.05/123,397.95 = 55,863.73/x
  3. Step 3: Cross multiply
    89,456.05x = 123,397.95 × 55,863.73
  4. Step 4: Simplify right side
    89,456.05x = 6,893,469,761.35
  5. Step 5: Solve for x
    x = 6,893,469,761.35/89,456.05
  6. Step 6: Final answer
    x = 77,059.85

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.