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Finding the Fourth Proportional to 81,597.40, 122,397.60 and 22,432.72

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Solution

The fourth proportional to 81,597.40, 122,397.60 and 22,432.72 is: 33,649.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,597.40 : 122,397.60 = 22,432.72 : x
  2. Step 2: Convert to fraction form
    81,597.40/122,397.60 = 22,432.72/x
  3. Step 3: Cross multiply
    81,597.40x = 122,397.60 × 22,432.72
  4. Step 4: Simplify right side
    81,597.40x = 2,745,711,089.47
  5. Step 5: Solve for x
    x = 2,745,711,089.47/81,597.40
  6. Step 6: Final answer
    x = 33,649.49

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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.