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Finding the Third Proportional to 35,911 and 77,151

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Solution

The third proportional to 35,911 and 77,151 is: 165,750.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,911 : 77,151 = 77,151 : x
  2. Step 2: Convert to fraction form
    35,911/77,151 = 77,151/x
  3. Step 3: Cross multiply
    35,911x = 77,151 × 77,151
  4. Step 4: Simplify right side
    35,911x = 5,952,276,801
  5. Step 5: Solve for x
    x = 5,952,276,801/35,911
  6. Step 6: Final answer
    x = 165,750.80

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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.