Home / 81,520.76-122,278.26-22,355.48

Finding the Fourth Proportional to 81,520.76, 122,278.26 and 22,355.48

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Solution

The fourth proportional to 81,520.76, 122,278.26 and 22,355.48 is: 33,532.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,520.76 : 122,278.26 = 22,355.48 : x
  2. Step 2: Convert to fraction form
    81,520.76/122,278.26 = 22,355.48/x
  3. Step 3: Cross multiply
    81,520.76x = 122,278.26 × 22,355.48
  4. Step 4: Simplify right side
    81,520.76x = 2,733,589,195.86
  5. Step 5: Solve for x
    x = 2,733,589,195.86/81,520.76
  6. Step 6: Final answer
    x = 33,532.43

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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.