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Finding the Third Proportional to 40,768 and 76,416

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Solution

The third proportional to 40,768 and 76,416 is: 143,235.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,768 : 76,416 = 76,416 : x
  2. Step 2: Convert to fraction form
    40,768/76,416 = 76,416/x
  3. Step 3: Cross multiply
    40,768x = 76,416 × 76,416
  4. Step 4: Simplify right side
    40,768x = 5,839,405,056
  5. Step 5: Solve for x
    x = 5,839,405,056/40,768
  6. Step 6: Final answer
    x = 143,235.01

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Why These Related Problems?

These problems maintain the same ratio (1.87) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.