Home / 99,349.38-137,102.79-54,027.85

Finding the Fourth Proportional to 99,349.38, 137,102.79 and 54,027.85

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Solution

The fourth proportional to 99,349.38, 137,102.79 and 54,027.85 is: 74,558.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,349.38 : 137,102.79 = 54,027.85 : x
  2. Step 2: Convert to fraction form
    99,349.38/137,102.79 = 54,027.85/x
  3. Step 3: Cross multiply
    99,349.38x = 137,102.79 × 54,027.85
  4. Step 4: Simplify right side
    99,349.38x = 7,407,368,972.70
  5. Step 5: Solve for x
    x = 7,407,368,972.70/99,349.38
  6. Step 6: Final answer
    x = 74,558.78

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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.