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Finding the Third Proportional to 27,090 and 36,909

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Solution

The third proportional to 27,090 and 36,909 is: 50,286.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,090 : 36,909 = 36,909 : x
  2. Step 2: Convert to fraction form
    27,090/36,909 = 36,909/x
  3. Step 3: Cross multiply
    27,090x = 36,909 × 36,909
  4. Step 4: Simplify right side
    27,090x = 1,362,274,281
  5. Step 5: Solve for x
    x = 1,362,274,281/27,090
  6. Step 6: Final answer
    x = 50,286.98

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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.