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Finding the Fourth Proportional to 83,592, 125,388 and 28,188

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Solution

The fourth proportional to 83,592, 125,388 and 28,188 is: 42,282

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,592 : 125,388 = 28,188 : x
  2. Step 2: Convert to fraction form
    83,592/125,388 = 28,188/x
  3. Step 3: Cross multiply
    83,592x = 125,388 × 28,188
  4. Step 4: Simplify right side
    83,592x = 3,534,436,944
  5. Step 5: Solve for x
    x = 3,534,436,944/83,592
  6. Step 6: Final answer
    x = 42,282

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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.