Home / 89,829.76-123,962.20-49,545.20

Finding the Fourth Proportional to 89,829.76, 123,962.20 and 49,545.20

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Solution

The fourth proportional to 89,829.76, 123,962.20 and 49,545.20 is: 68,370.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,829.76 : 123,962.20 = 49,545.20 : x
  2. Step 2: Convert to fraction form
    89,829.76/123,962.20 = 49,545.20/x
  3. Step 3: Cross multiply
    89,829.76x = 123,962.20 × 49,545.20
  4. Step 4: Simplify right side
    89,829.76x = 6,141,731,991.44
  5. Step 5: Solve for x
    x = 6,141,731,991.44/89,829.76
  6. Step 6: Final answer
    x = 68,370.79

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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.