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Finding the Fourth Proportional to 73,632, 110,448 and 18,228

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Solution

The fourth proportional to 73,632, 110,448 and 18,228 is: 27,342

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,632 : 110,448 = 18,228 : x
  2. Step 2: Convert to fraction form
    73,632/110,448 = 18,228/x
  3. Step 3: Cross multiply
    73,632x = 110,448 × 18,228
  4. Step 4: Simplify right side
    73,632x = 2,013,246,144
  5. Step 5: Solve for x
    x = 2,013,246,144/73,632
  6. Step 6: Final answer
    x = 27,342

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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.