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Finding the Third Proportional to 26,458 and 42,539

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Solution

The third proportional to 26,458 and 42,539 is: 68,393.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,458 : 42,539 = 42,539 : x
  2. Step 2: Convert to fraction form
    26,458/42,539 = 42,539/x
  3. Step 3: Cross multiply
    26,458x = 42,539 × 42,539
  4. Step 4: Simplify right side
    26,458x = 1,809,566,521
  5. Step 5: Solve for x
    x = 1,809,566,521/26,458
  6. Step 6: Final answer
    x = 68,393.93

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Why These Related Problems?

These problems maintain the same ratio (1.61) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.