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Finding the Fourth Proportional to 67,524.40, 101,286.60 and 66,487.60

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Solution

The fourth proportional to 67,524.40, 101,286.60 and 66,487.60 is: 99,731.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,524.40 : 101,286.60 = 66,487.60 : x
  2. Step 2: Convert to fraction form
    67,524.40/101,286.60 = 66,487.60/x
  3. Step 3: Cross multiply
    67,524.40x = 101,286.60 × 66,487.60
  4. Step 4: Simplify right side
    67,524.40x = 6,734,302,946.16
  5. Step 5: Solve for x
    x = 6,734,302,946.16/67,524.40
  6. Step 6: Final answer
    x = 99,731.40

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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.