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Finding the Fourth Proportional to 81,508.44, 122,262.66 and 53,799.96

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Solution

The fourth proportional to 81,508.44, 122,262.66 and 53,799.96 is: 80,699.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,508.44 : 122,262.66 = 53,799.96 : x
  2. Step 2: Convert to fraction form
    81,508.44/122,262.66 = 53,799.96/x
  3. Step 3: Cross multiply
    81,508.44x = 122,262.66 × 53,799.96
  4. Step 4: Simplify right side
    81,508.44x = 6,577,726,217.49
  5. Step 5: Solve for x
    x = 6,577,726,217.49/81,508.44
  6. Step 6: Final answer
    x = 80,699.94

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1.5x scale

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.