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Finding the Third Proportional to 55,650 and 121,911

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Solution

The third proportional to 55,650 and 121,911 is: 267,067.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,650 : 121,911 = 121,911 : x
  2. Step 2: Convert to fraction form
    55,650/121,911 = 121,911/x
  3. Step 3: Cross multiply
    55,650x = 121,911 × 121,911
  4. Step 4: Simplify right side
    55,650x = 14,862,291,921
  5. Step 5: Solve for x
    x = 14,862,291,921/55,650
  6. Step 6: Final answer
    x = 267,067.24

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Why These Related Problems?

These problems maintain the same ratio (2.19) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.