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Finding the Third Proportional to 45,639 and 68,271

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Solution

The third proportional to 45,639 and 68,271 is: 102,126.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,639 : 68,271 = 68,271 : x
  2. Step 2: Convert to fraction form
    45,639/68,271 = 68,271/x
  3. Step 3: Cross multiply
    45,639x = 68,271 × 68,271
  4. Step 4: Simplify right side
    45,639x = 4,660,929,441
  5. Step 5: Solve for x
    x = 4,660,929,441/45,639
  6. Step 6: Final answer
    x = 102,126.02

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.