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Finding the Third Proportional to 42,340 and 62,278

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Solution

The third proportional to 42,340 and 62,278 is: 91,604.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,340 : 62,278 = 62,278 : x
  2. Step 2: Convert to fraction form
    42,340/62,278 = 62,278/x
  3. Step 3: Cross multiply
    42,340x = 62,278 × 62,278
  4. Step 4: Simplify right side
    42,340x = 3,878,549,284
  5. Step 5: Solve for x
    x = 3,878,549,284/42,340
  6. Step 6: Final answer
    x = 91,604.85

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Why These Related Problems?

These problems maintain the same ratio (1.47) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.