Home / 89,400.18-123,372.30-49,116.54

Finding the Fourth Proportional to 89,400.18, 123,372.30 and 49,116.54

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Solution

The fourth proportional to 89,400.18, 123,372.30 and 49,116.54 is: 67,780.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,400.18 : 123,372.30 = 49,116.54 : x
  2. Step 2: Convert to fraction form
    89,400.18/123,372.30 = 49,116.54/x
  3. Step 3: Cross multiply
    89,400.18x = 123,372.30 × 49,116.54
  4. Step 4: Simplify right side
    89,400.18x = 6,059,619,645.40
  5. Step 5: Solve for x
    x = 6,059,619,645.40/89,400.18
  6. Step 6: Final answer
    x = 67,780.85

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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.