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Finding the Third Proportional to 28,580 and 61,930

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Solution

The third proportional to 28,580 and 61,930 is: 134,196.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,580 : 61,930 = 61,930 : x
  2. Step 2: Convert to fraction form
    28,580/61,930 = 61,930/x
  3. Step 3: Cross multiply
    28,580x = 61,930 × 61,930
  4. Step 4: Simplify right side
    28,580x = 3,835,324,900
  5. Step 5: Solve for x
    x = 3,835,324,900/28,580
  6. Step 6: Final answer
    x = 134,196.11

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Why These Related Problems?

These problems maintain the same ratio (2.17) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.