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Finding the Third Proportional to 55,731 and 85,541

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Solution

The third proportional to 55,731 and 85,541 is: 131,296.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,731 : 85,541 = 85,541 : x
  2. Step 2: Convert to fraction form
    55,731/85,541 = 85,541/x
  3. Step 3: Cross multiply
    55,731x = 85,541 × 85,541
  4. Step 4: Simplify right side
    55,731x = 7,317,262,681
  5. Step 5: Solve for x
    x = 7,317,262,681/55,731
  6. Step 6: Final answer
    x = 131,296.10

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Why These Related Problems?

These problems maintain the same ratio (1.53) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.