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Finding the Third Proportional to 18,742 and 40,832

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Solution

The third proportional to 18,742 and 40,832 is: 88,958.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,742 : 40,832 = 40,832 : x
  2. Step 2: Convert to fraction form
    18,742/40,832 = 40,832/x
  3. Step 3: Cross multiply
    18,742x = 40,832 × 40,832
  4. Step 4: Simplify right side
    18,742x = 1,667,252,224
  5. Step 5: Solve for x
    x = 1,667,252,224/18,742
  6. Step 6: Final answer
    x = 88,958.07

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Why These Related Problems?

These problems maintain the same ratio (2.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.