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Finding the Fourth Proportional to 67,380, 101,069.60 and 17,459.97

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Solution

The fourth proportional to 67,380, 101,069.60 and 17,459.97 is: 26,189.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,380 : 101,069.60 = 17,459.97 : x
  2. Step 2: Convert to fraction form
    67,380/101,069.60 = 17,459.97/x
  3. Step 3: Cross multiply
    67,380x = 101,069.60 × 17,459.97
  4. Step 4: Simplify right side
    67,380x = 1,764,672,096.61
  5. Step 5: Solve for x
    x = 1,764,672,096.61/67,380
  6. Step 6: Final answer
    x = 26,189.85

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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.