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Finding the Fourth Proportional to 89,473.87, 123,471.48 and 49,187.71

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Solution

The fourth proportional to 89,473.87, 123,471.48 and 49,187.71 is: 67,877.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,473.87 : 123,471.48 = 49,187.71 : x
  2. Step 2: Convert to fraction form
    89,473.87/123,471.48 = 49,187.71/x
  3. Step 3: Cross multiply
    89,473.87x = 123,471.48 × 49,187.71
  4. Step 4: Simplify right side
    89,473.87x = 6,073,279,351.51
  5. Step 5: Solve for x
    x = 6,073,279,351.51/89,473.87
  6. Step 6: Final answer
    x = 67,877.69

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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.