Home / 52,960.78-79,441.10-13,517.90

Finding the Fourth Proportional to 52,960.78, 79,441.10 and 13,517.90

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Solution

The fourth proportional to 52,960.78, 79,441.10 and 13,517.90 is: 20,276.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,960.78 : 79,441.10 = 13,517.90 : x
  2. Step 2: Convert to fraction form
    52,960.78/79,441.10 = 13,517.90/x
  3. Step 3: Cross multiply
    52,960.78x = 79,441.10 × 13,517.90
  4. Step 4: Simplify right side
    52,960.78x = 1,073,876,729.49
  5. Step 5: Solve for x
    x = 1,073,876,729.49/52,960.78
  6. Step 6: Final answer
    x = 20,276.83

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.