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Finding the Third Proportional to 40,858 and 63,520

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Solution

The third proportional to 40,858 and 63,520 is: 98,751.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,858 : 63,520 = 63,520 : x
  2. Step 2: Convert to fraction form
    40,858/63,520 = 63,520/x
  3. Step 3: Cross multiply
    40,858x = 63,520 × 63,520
  4. Step 4: Simplify right side
    40,858x = 4,034,790,400
  5. Step 5: Solve for x
    x = 4,034,790,400/40,858
  6. Step 6: Final answer
    x = 98,751.54

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Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.