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Finding the Fourth Proportional to 45,149.44, 67,704.72 and 17,428

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Solution

The fourth proportional to 45,149.44, 67,704.72 and 17,428 is: 26,134.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,149.44 : 67,704.72 = 17,428 : x
  2. Step 2: Convert to fraction form
    45,149.44/67,704.72 = 17,428/x
  3. Step 3: Cross multiply
    45,149.44x = 67,704.72 × 17,428
  4. Step 4: Simplify right side
    45,149.44x = 1,179,957,860.16
  5. Step 5: Solve for x
    x = 1,179,957,860.16/45,149.44
  6. Step 6: Final answer
    x = 26,134.50

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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.