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Finding the Fourth Proportional to 89,854.86, 123,999.72 and 49,568.73

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Solution

The fourth proportional to 89,854.86, 123,999.72 and 49,568.73 is: 68,404.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,854.86 : 123,999.72 = 49,568.73 : x
  2. Step 2: Convert to fraction form
    89,854.86/123,999.72 = 49,568.73/x
  3. Step 3: Cross multiply
    89,854.86x = 123,999.72 × 49,568.73
  4. Step 4: Simplify right side
    89,854.86x = 6,146,508,640.76
  5. Step 5: Solve for x
    x = 6,146,508,640.76/89,854.86
  6. Step 6: Final answer
    x = 68,404.85

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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.