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Finding the Third Proportional to 51,201 and 77,517

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Solution

The third proportional to 51,201 and 77,517 is: 117,358.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,201 : 77,517 = 77,517 : x
  2. Step 2: Convert to fraction form
    51,201/77,517 = 77,517/x
  3. Step 3: Cross multiply
    51,201x = 77,517 × 77,517
  4. Step 4: Simplify right side
    51,201x = 6,008,885,289
  5. Step 5: Solve for x
    x = 6,008,885,289/51,201
  6. Step 6: Final answer
    x = 117,358.75

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.