Home / 89,686.44-123,767.28-49,399.92

Finding the Fourth Proportional to 89,686.44, 123,767.28 and 49,399.92

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Solution

The fourth proportional to 89,686.44, 123,767.28 and 49,399.92 is: 68,171.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,686.44 : 123,767.28 = 49,399.92 : x
  2. Step 2: Convert to fraction form
    89,686.44/123,767.28 = 49,399.92/x
  3. Step 3: Cross multiply
    89,686.44x = 123,767.28 × 49,399.92
  4. Step 4: Simplify right side
    89,686.44x = 6,114,093,730.62
  5. Step 5: Solve for x
    x = 6,114,093,730.62/89,686.44
  6. Step 6: Final answer
    x = 68,171.89

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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.