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Finding the Fourth Proportional to 81,873.30, 122,809.92 and 22,708.96

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Solution

The fourth proportional to 81,873.30, 122,809.92 and 22,708.96 is: 34,063.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,873.30 : 122,809.92 = 22,708.96 : x
  2. Step 2: Convert to fraction form
    81,873.30/122,809.92 = 22,708.96/x
  3. Step 3: Cross multiply
    81,873.30x = 122,809.92 × 22,708.96
  4. Step 4: Simplify right side
    81,873.30x = 2,788,885,560.88
  5. Step 5: Solve for x
    x = 2,788,885,560.88/81,873.30
  6. Step 6: Final answer
    x = 34,063.43

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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.