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Finding the Third Proportional to 18,699 and 40,062

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Solution

The third proportional to 18,699 and 40,062 is: 85,831.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,699 : 40,062 = 40,062 : x
  2. Step 2: Convert to fraction form
    18,699/40,062 = 40,062/x
  3. Step 3: Cross multiply
    18,699x = 40,062 × 40,062
  4. Step 4: Simplify right side
    18,699x = 1,604,963,844
  5. Step 5: Solve for x
    x = 1,604,963,844/18,699
  6. Step 6: Final answer
    x = 85,831.53

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Why These Related Problems?

These problems maintain the same ratio (2.14) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.