Home / 81,909.20-122,863.74-22,744.84

Finding the Fourth Proportional to 81,909.20, 122,863.74 and 22,744.84

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Solution

The fourth proportional to 81,909.20, 122,863.74 and 22,744.84 is: 34,117.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,909.20 : 122,863.74 = 22,744.84 : x
  2. Step 2: Convert to fraction form
    81,909.20/122,863.74 = 22,744.84/x
  3. Step 3: Cross multiply
    81,909.20x = 122,863.74 × 22,744.84
  4. Step 4: Simplify right side
    81,909.20x = 2,794,516,108.10
  5. Step 5: Solve for x
    x = 2,794,516,108.10/81,909.20
  6. Step 6: Final answer
    x = 34,117.24

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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.