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Finding the Fourth Proportional to 81,564.82, 122,326.98 and 22,397.56

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Solution

The fourth proportional to 81,564.82, 122,326.98 and 22,397.56 is: 33,590.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,564.82 : 122,326.98 = 22,397.56 : x
  2. Step 2: Convert to fraction form
    81,564.82/122,326.98 = 22,397.56/x
  3. Step 3: Cross multiply
    81,564.82x = 122,326.98 × 22,397.56
  4. Step 4: Simplify right side
    81,564.82x = 2,739,825,874.17
  5. Step 5: Solve for x
    x = 2,739,825,874.17/81,564.82
  6. Step 6: Final answer
    x = 33,590.78

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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.