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Finding the Fourth Proportional to 81,591.04, 122,363.04 and 22,428.64

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Solution

The fourth proportional to 81,591.04, 122,363.04 and 22,428.64 is: 33,636.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,591.04 : 122,363.04 = 22,428.64 : x
  2. Step 2: Convert to fraction form
    81,591.04/122,363.04 = 22,428.64/x
  3. Step 3: Cross multiply
    81,591.04x = 122,363.04 × 22,428.64
  4. Step 4: Simplify right side
    81,591.04x = 2,744,436,573.47
  5. Step 5: Solve for x
    x = 2,744,436,573.47/81,591.04
  6. Step 6: Final answer
    x = 33,636.49

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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.