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Finding the Third Proportional to 57,580 and 87,254

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Solution

The third proportional to 57,580 and 87,254 is: 132,220.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,580 : 87,254 = 87,254 : x
  2. Step 2: Convert to fraction form
    57,580/87,254 = 87,254/x
  3. Step 3: Cross multiply
    57,580x = 87,254 × 87,254
  4. Step 4: Simplify right side
    57,580x = 7,613,260,516
  5. Step 5: Solve for x
    x = 7,613,260,516/57,580
  6. Step 6: Final answer
    x = 132,220.57

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Why These Related Problems?

These problems maintain the same ratio (1.52) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.