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Finding the Third Proportional to 39,088 and 76,220

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Solution

The third proportional to 39,088 and 76,220 is: 148,625.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,088 : 76,220 = 76,220 : x
  2. Step 2: Convert to fraction form
    39,088/76,220 = 76,220/x
  3. Step 3: Cross multiply
    39,088x = 76,220 × 76,220
  4. Step 4: Simplify right side
    39,088x = 5,809,488,400
  5. Step 5: Solve for x
    x = 5,809,488,400/39,088
  6. Step 6: Final answer
    x = 148,625.88

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Why These Related Problems?

These problems maintain the same ratio (1.95) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.