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Finding the Third Proportional to 31,814 and 47,701

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Solution

The third proportional to 31,814 and 47,701 is: 71,521.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,814 : 47,701 = 47,701 : x
  2. Step 2: Convert to fraction form
    31,814/47,701 = 47,701/x
  3. Step 3: Cross multiply
    31,814x = 47,701 × 47,701
  4. Step 4: Simplify right side
    31,814x = 2,275,385,401
  5. Step 5: Solve for x
    x = 2,275,385,401/31,814
  6. Step 6: Final answer
    x = 71,521.51

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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.