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Finding the Third Proportional to 35,558 and 77,811

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Solution

The third proportional to 35,558 and 77,811 is: 170,272.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,558 : 77,811 = 77,811 : x
  2. Step 2: Convert to fraction form
    35,558/77,811 = 77,811/x
  3. Step 3: Cross multiply
    35,558x = 77,811 × 77,811
  4. Step 4: Simplify right side
    35,558x = 6,054,551,721
  5. Step 5: Solve for x
    x = 6,054,551,721/35,558
  6. Step 6: Final answer
    x = 170,272.56

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Why These Related Problems?

These problems maintain the same ratio (2.19) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.