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Finding the Third Proportional to 57,585 and 84,729

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Solution

The third proportional to 57,585 and 84,729 is: 124,667.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,585 : 84,729 = 84,729 : x
  2. Step 2: Convert to fraction form
    57,585/84,729 = 84,729/x
  3. Step 3: Cross multiply
    57,585x = 84,729 × 84,729
  4. Step 4: Simplify right side
    57,585x = 7,179,003,441
  5. Step 5: Solve for x
    x = 7,179,003,441/57,585
  6. Step 6: Final answer
    x = 124,667.94

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Why These Related Problems?

These problems maintain the same ratio (1.47) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.