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Finding the Fourth Proportional to 81,591.60, 122,384.32 and 22,425.74

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Solution

The fourth proportional to 81,591.60, 122,384.32 and 22,425.74 is: 33,637.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,591.60 : 122,384.32 = 22,425.74 : x
  2. Step 2: Convert to fraction form
    81,591.60/122,384.32 = 22,425.74/x
  3. Step 3: Cross multiply
    81,591.60x = 122,384.32 × 22,425.74
  4. Step 4: Simplify right side
    81,591.60x = 2,744,558,272.41
  5. Step 5: Solve for x
    x = 2,744,558,272.41/81,591.60
  6. Step 6: Final answer
    x = 33,637.76

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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.