Home / 89,683.39-123,758.40-55,691.15

Finding the Fourth Proportional to 89,683.39, 123,758.40 and 55,691.15

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Solution

The fourth proportional to 89,683.39, 123,758.40 and 55,691.15 is: 76,850.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,683.39 : 123,758.40 = 55,691.15 : x
  2. Step 2: Convert to fraction form
    89,683.39/123,758.40 = 55,691.15/x
  3. Step 3: Cross multiply
    89,683.39x = 123,758.40 × 55,691.15
  4. Step 4: Simplify right side
    89,683.39x = 6,892,246,894.95
  5. Step 5: Solve for x
    x = 6,892,246,894.95/89,683.39
  6. Step 6: Final answer
    x = 76,850.88

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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.