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Finding the Third Proportional to 51,639 and 76,497

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Solution

The third proportional to 51,639 and 76,497 is: 113,321.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,639 : 76,497 = 76,497 : x
  2. Step 2: Convert to fraction form
    51,639/76,497 = 76,497/x
  3. Step 3: Cross multiply
    51,639x = 76,497 × 76,497
  4. Step 4: Simplify right side
    51,639x = 5,851,791,009
  5. Step 5: Solve for x
    x = 5,851,791,009/51,639
  6. Step 6: Final answer
    x = 113,321.15

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Why These Related Problems?

These problems maintain the same ratio (1.48) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.