Home / 89,455.73-123,452.15-49,172.55

Finding the Fourth Proportional to 89,455.73, 123,452.15 and 49,172.55

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Solution

The fourth proportional to 89,455.73, 123,452.15 and 49,172.55 is: 67,859.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,455.73 : 123,452.15 = 49,172.55 : x
  2. Step 2: Convert to fraction form
    89,455.73/123,452.15 = 49,172.55/x
  3. Step 3: Cross multiply
    89,455.73x = 123,452.15 × 49,172.55
  4. Step 4: Simplify right side
    89,455.73x = 6,070,456,772.62
  5. Step 5: Solve for x
    x = 6,070,456,772.62/89,455.73
  6. Step 6: Final answer
    x = 67,859.90

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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.