Home / 48,175.20-72,261.45-21,879.90

Finding the Fourth Proportional to 48,175.20, 72,261.45 and 21,879.90

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Solution

The fourth proportional to 48,175.20, 72,261.45 and 21,879.90 is: 32,819.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,175.20 : 72,261.45 = 21,879.90 : x
  2. Step 2: Convert to fraction form
    48,175.20/72,261.45 = 21,879.90/x
  3. Step 3: Cross multiply
    48,175.20x = 72,261.45 × 21,879.90
  4. Step 4: Simplify right side
    48,175.20x = 1,581,073,299.86
  5. Step 5: Solve for x
    x = 1,581,073,299.86/48,175.20
  6. Step 6: Final answer
    x = 32,819.24

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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.