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Finding the Fourth Proportional to 71,645.59, 107,468.00 and 18,337.46

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Solution

The fourth proportional to 71,645.59, 107,468.00 and 18,337.46 is: 27,506.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,645.59 : 107,468.00 = 18,337.46 : x
  2. Step 2: Convert to fraction form
    71,645.59/107,468.00 = 18,337.46/x
  3. Step 3: Cross multiply
    71,645.59x = 107,468.00 × 18,337.46
  4. Step 4: Simplify right side
    71,645.59x = 1,970,690,575.14
  5. Step 5: Solve for x
    x = 1,970,690,575.14/71,645.59
  6. Step 6: Final answer
    x = 27,506.10

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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.