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Finding the Third Proportional to 30,736 and 43,530

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Solution

The third proportional to 30,736 and 43,530 is: 61,649.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,736 : 43,530 = 43,530 : x
  2. Step 2: Convert to fraction form
    30,736/43,530 = 43,530/x
  3. Step 3: Cross multiply
    30,736x = 43,530 × 43,530
  4. Step 4: Simplify right side
    30,736x = 1,894,860,900
  5. Step 5: Solve for x
    x = 1,894,860,900/30,736
  6. Step 6: Final answer
    x = 61,649.56

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Why These Related Problems?

These problems maintain the same ratio (1.42) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.