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Finding the Third Proportional to 55,259 and 84,986

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Solution

The third proportional to 55,259 and 84,986 is: 130,704.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,259 : 84,986 = 84,986 : x
  2. Step 2: Convert to fraction form
    55,259/84,986 = 84,986/x
  3. Step 3: Cross multiply
    55,259x = 84,986 × 84,986
  4. Step 4: Simplify right side
    55,259x = 7,222,620,196
  5. Step 5: Solve for x
    x = 7,222,620,196/55,259
  6. Step 6: Final answer
    x = 130,704.87

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Why These Related Problems?

These problems maintain the same ratio (1.54) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.