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Finding the Third Proportional to 18,809 and 40,055

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Solution

The third proportional to 18,809 and 40,055 is: 85,299.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,809 : 40,055 = 40,055 : x
  2. Step 2: Convert to fraction form
    18,809/40,055 = 40,055/x
  3. Step 3: Cross multiply
    18,809x = 40,055 × 40,055
  4. Step 4: Simplify right side
    18,809x = 1,604,403,025
  5. Step 5: Solve for x
    x = 1,604,403,025/18,809
  6. Step 6: Final answer
    x = 85,299.75

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Why These Related Problems?

These problems maintain the same ratio (2.13) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.