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Finding the Fourth Proportional to 81,497.61, 122,229.81 and 22,328.73

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Solution

The fourth proportional to 81,497.61, 122,229.81 and 22,328.73 is: 33,488.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,497.61 : 122,229.81 = 22,328.73 : x
  2. Step 2: Convert to fraction form
    81,497.61/122,229.81 = 22,328.73/x
  3. Step 3: Cross multiply
    81,497.61x = 122,229.81 × 22,328.73
  4. Step 4: Simplify right side
    81,497.61x = 2,729,236,425.44
  5. Step 5: Solve for x
    x = 2,729,236,425.44/81,497.61
  6. Step 6: Final answer
    x = 33,488.55

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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.