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Finding the Third Proportional to 28,677 and 61,749

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Solution

The third proportional to 28,677 and 61,749 is: 132,961.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,677 : 61,749 = 61,749 : x
  2. Step 2: Convert to fraction form
    28,677/61,749 = 61,749/x
  3. Step 3: Cross multiply
    28,677x = 61,749 × 61,749
  4. Step 4: Simplify right side
    28,677x = 3,812,939,001
  5. Step 5: Solve for x
    x = 3,812,939,001/28,677
  6. Step 6: Final answer
    x = 132,961.57

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Why These Related Problems?

These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.