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Finding the Third Proportional to 35,291 and 74,686

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Solution

The third proportional to 35,291 and 74,686 is: 158,057.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,291 : 74,686 = 74,686 : x
  2. Step 2: Convert to fraction form
    35,291/74,686 = 74,686/x
  3. Step 3: Cross multiply
    35,291x = 74,686 × 74,686
  4. Step 4: Simplify right side
    35,291x = 5,577,998,596
  5. Step 5: Solve for x
    x = 5,577,998,596/35,291
  6. Step 6: Final answer
    x = 158,057.26

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Why These Related Problems?

These problems maintain the same ratio (2.12) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.