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Finding the Fourth Proportional to 81,732.61, 122,605.98 and 22,568.32

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Solution

The fourth proportional to 81,732.61, 122,605.98 and 22,568.32 is: 33,854.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,732.61 : 122,605.98 = 22,568.32 : x
  2. Step 2: Convert to fraction form
    81,732.61/122,605.98 = 22,568.32/x
  3. Step 3: Cross multiply
    81,732.61x = 122,605.98 × 22,568.32
  4. Step 4: Simplify right side
    81,732.61x = 2,767,010,990.55
  5. Step 5: Solve for x
    x = 2,767,010,990.55/81,732.61
  6. Step 6: Final answer
    x = 33,854.43

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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.