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Finding the Fourth Proportional to 67,732.88, 101,372.64 and 66,836.75

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Solution

The fourth proportional to 67,732.88, 101,372.64 and 66,836.75 is: 100,031.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,732.88 : 101,372.64 = 66,836.75 : x
  2. Step 2: Convert to fraction form
    67,732.88/101,372.64 = 66,836.75/x
  3. Step 3: Cross multiply
    67,732.88x = 101,372.64 × 66,836.75
  4. Step 4: Simplify right side
    67,732.88x = 6,775,417,289.66
  5. Step 5: Solve for x
    x = 6,775,417,289.66/67,732.88
  6. Step 6: Final answer
    x = 100,031.44

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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.