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Finding the Third Proportional to 62,450 and 81,030

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Solution

The third proportional to 62,450 and 81,030 is: 105,137.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,450 : 81,030 = 81,030 : x
  2. Step 2: Convert to fraction form
    62,450/81,030 = 81,030/x
  3. Step 3: Cross multiply
    62,450x = 81,030 × 81,030
  4. Step 4: Simplify right side
    62,450x = 6,565,860,900
  5. Step 5: Solve for x
    x = 6,565,860,900/62,450
  6. Step 6: Final answer
    x = 105,137.88

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Why These Related Problems?

These problems maintain the same ratio (1.30) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.