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Finding the Fourth Proportional to 89,472.72, 123,472.60 and 49,190.60

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Solution

The fourth proportional to 89,472.72, 123,472.60 and 49,190.60 is: 67,883.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,472.72 : 123,472.60 = 49,190.60 : x
  2. Step 2: Convert to fraction form
    89,472.72/123,472.60 = 49,190.60/x
  3. Step 3: Cross multiply
    89,472.72x = 123,472.60 × 49,190.60
  4. Step 4: Simplify right side
    89,472.72x = 6,073,691,277.56
  5. Step 5: Solve for x
    x = 6,073,691,277.56/89,472.72
  6. Step 6: Final answer
    x = 67,883.16

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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.