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Finding the Third Proportional to 35,418 and 77,406

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Solution

The third proportional to 35,418 and 77,406 is: 169,170.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,418 : 77,406 = 77,406 : x
  2. Step 2: Convert to fraction form
    35,418/77,406 = 77,406/x
  3. Step 3: Cross multiply
    35,418x = 77,406 × 77,406
  4. Step 4: Simplify right side
    35,418x = 5,991,688,836
  5. Step 5: Solve for x
    x = 5,991,688,836/35,418
  6. Step 6: Final answer
    x = 169,170.73

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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.