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Finding the Fourth Proportional to 81,562.58, 122,329.26 and 22,390.46

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Solution

The fourth proportional to 81,562.58, 122,329.26 and 22,390.46 is: 33,581.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,562.58 : 122,329.26 = 22,390.46 : x
  2. Step 2: Convert to fraction form
    81,562.58/122,329.26 = 22,390.46/x
  3. Step 3: Cross multiply
    81,562.58x = 122,329.26 × 22,390.46
  4. Step 4: Simplify right side
    81,562.58x = 2,739,008,402.86
  5. Step 5: Solve for x
    x = 2,739,008,402.86/81,562.58
  6. Step 6: Final answer
    x = 33,581.68

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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.