Home / 89,543.30-123,568.86-49,257.11

Finding the Fourth Proportional to 89,543.30, 123,568.86 and 49,257.11

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Solution

The fourth proportional to 89,543.30, 123,568.86 and 49,257.11 is: 67,974.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,543.30 : 123,568.86 = 49,257.11 : x
  2. Step 2: Convert to fraction form
    89,543.30/123,568.86 = 49,257.11/x
  3. Step 3: Cross multiply
    89,543.30x = 123,568.86 × 49,257.11
  4. Step 4: Simplify right side
    89,543.30x = 6,086,644,468.10
  5. Step 5: Solve for x
    x = 6,086,644,468.10/89,543.30
  6. Step 6: Final answer
    x = 67,974.32

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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.