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Finding the Third Proportional to 40,258 and 54,669

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Solution

The third proportional to 40,258 and 54,669 is: 74,238.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,258 : 54,669 = 54,669 : x
  2. Step 2: Convert to fraction form
    40,258/54,669 = 54,669/x
  3. Step 3: Cross multiply
    40,258x = 54,669 × 54,669
  4. Step 4: Simplify right side
    40,258x = 2,988,699,561
  5. Step 5: Solve for x
    x = 2,988,699,561/40,258
  6. Step 6: Final answer
    x = 74,238.65

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Why These Related Problems?

These problems maintain the same ratio (1.36) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.