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Finding the Third Proportional to 37,970 and 81,556

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Solution

The third proportional to 37,970 and 81,556 is: 175,174.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,970 : 81,556 = 81,556 : x
  2. Step 2: Convert to fraction form
    37,970/81,556 = 81,556/x
  3. Step 3: Cross multiply
    37,970x = 81,556 × 81,556
  4. Step 4: Simplify right side
    37,970x = 6,651,381,136
  5. Step 5: Solve for x
    x = 6,651,381,136/37,970
  6. Step 6: Final answer
    x = 175,174.64

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Why These Related Problems?

These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.