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Finding the Fourth Proportional to 89,760.92, 123,870.92 and 49,476.24

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Solution

The fourth proportional to 89,760.92, 123,870.92 and 49,476.24 is: 68,277.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,760.92 : 123,870.92 = 49,476.24 : x
  2. Step 2: Convert to fraction form
    89,760.92/123,870.92 = 49,476.24/x
  3. Step 3: Cross multiply
    89,760.92x = 123,870.92 × 49,476.24
  4. Step 4: Simplify right side
    89,760.92x = 6,128,667,119.56
  5. Step 5: Solve for x
    x = 6,128,667,119.56/89,760.92
  6. Step 6: Final answer
    x = 68,277.68

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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.