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Finding the Third Proportional to 30,402 and 43,992

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Solution

The third proportional to 30,402 and 43,992 is: 63,656.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,402 : 43,992 = 43,992 : x
  2. Step 2: Convert to fraction form
    30,402/43,992 = 43,992/x
  3. Step 3: Cross multiply
    30,402x = 43,992 × 43,992
  4. Step 4: Simplify right side
    30,402x = 1,935,296,064
  5. Step 5: Solve for x
    x = 1,935,296,064/30,402
  6. Step 6: Final answer
    x = 63,656.87

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Why These Related Problems?

These problems maintain the same ratio (1.45) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.