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Finding the Third Proportional to 21,132 and 45,603

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Solution

The third proportional to 21,132 and 45,603 is: 98,411.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,132 : 45,603 = 45,603 : x
  2. Step 2: Convert to fraction form
    21,132/45,603 = 45,603/x
  3. Step 3: Cross multiply
    21,132x = 45,603 × 45,603
  4. Step 4: Simplify right side
    21,132x = 2,079,633,609
  5. Step 5: Solve for x
    x = 2,079,633,609/21,132
  6. Step 6: Final answer
    x = 98,411.58

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Why These Related Problems?

These problems maintain the same ratio (2.16) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.