Home / 48,074.11-72,115.28-12,540.16

Finding the Fourth Proportional to 48,074.11, 72,115.28 and 12,540.16

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Solution

The fourth proportional to 48,074.11, 72,115.28 and 12,540.16 is: 18,811.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,074.11 : 72,115.28 = 12,540.16 : x
  2. Step 2: Convert to fraction form
    48,074.11/72,115.28 = 12,540.16/x
  3. Step 3: Cross multiply
    48,074.11x = 72,115.28 × 12,540.16
  4. Step 4: Simplify right side
    48,074.11x = 904,337,149.64
  5. Step 5: Solve for x
    x = 904,337,149.64/48,074.11
  6. Step 6: Final answer
    x = 18,811.31

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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.