Home / 89,737.72-123,828.12-51,487

Finding the Fourth Proportional to 89,737.72, 123,828.12 and 51,487

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Solution

The fourth proportional to 89,737.72, 123,828.12 and 51,487 is: 71,046.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,737.72 : 123,828.12 = 51,487 : x
  2. Step 2: Convert to fraction form
    89,737.72/123,828.12 = 51,487/x
  3. Step 3: Cross multiply
    89,737.72x = 123,828.12 × 51,487
  4. Step 4: Simplify right side
    89,737.72x = 6,375,538,414.44
  5. Step 5: Solve for x
    x = 6,375,538,414.44/89,737.72
  6. Step 6: Final answer
    x = 71,046.36

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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.