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Finding the Fourth Proportional to 67,591.60, 101,387.40 and 18,343.60

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Solution

The fourth proportional to 67,591.60, 101,387.40 and 18,343.60 is: 27,515.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,591.60 : 101,387.40 = 18,343.60 : x
  2. Step 2: Convert to fraction form
    67,591.60/101,387.40 = 18,343.60/x
  3. Step 3: Cross multiply
    67,591.60x = 101,387.40 × 18,343.60
  4. Step 4: Simplify right side
    67,591.60x = 1,859,809,910.64
  5. Step 5: Solve for x
    x = 1,859,809,910.64/67,591.60
  6. Step 6: Final answer
    x = 27,515.40

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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.