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Finding the Fourth Proportional to 89,797.39, 123,920.91 and 49,510.46

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Solution

The fourth proportional to 89,797.39, 123,920.91 and 49,510.46 is: 68,324.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,797.39 : 123,920.91 = 49,510.46 : x
  2. Step 2: Convert to fraction form
    89,797.39/123,920.91 = 49,510.46/x
  3. Step 3: Cross multiply
    89,797.39x = 123,920.91 × 49,510.46
  4. Step 4: Simplify right side
    89,797.39x = 6,135,381,567.52
  5. Step 5: Solve for x
    x = 6,135,381,567.52/89,797.39
  6. Step 6: Final answer
    x = 68,324.72

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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.