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Finding the Fourth Proportional to 45,234, 67,851 and 12,402

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Solution

The fourth proportional to 45,234, 67,851 and 12,402 is: 18,603

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,234 : 67,851 = 12,402 : x
  2. Step 2: Convert to fraction form
    45,234/67,851 = 12,402/x
  3. Step 3: Cross multiply
    45,234x = 67,851 × 12,402
  4. Step 4: Simplify right side
    45,234x = 841,488,102
  5. Step 5: Solve for x
    x = 841,488,102/45,234
  6. Step 6: Final answer
    x = 18,603

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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.