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Finding the Third Proportional to 18,135 and 37,899

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Solution

The third proportional to 18,135 and 37,899 is: 79,202.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,135 : 37,899 = 37,899 : x
  2. Step 2: Convert to fraction form
    18,135/37,899 = 37,899/x
  3. Step 3: Cross multiply
    18,135x = 37,899 × 37,899
  4. Step 4: Simplify right side
    18,135x = 1,436,334,201
  5. Step 5: Solve for x
    x = 1,436,334,201/18,135
  6. Step 6: Final answer
    x = 79,202.33

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Why These Related Problems?

These problems maintain the same ratio (2.09) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.