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Finding the Third Proportional to 39,984 and 56,958

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Solution

The third proportional to 39,984 and 56,958 is: 81,137.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,984 : 56,958 = 56,958 : x
  2. Step 2: Convert to fraction form
    39,984/56,958 = 56,958/x
  3. Step 3: Cross multiply
    39,984x = 56,958 × 56,958
  4. Step 4: Simplify right side
    39,984x = 3,244,213,764
  5. Step 5: Solve for x
    x = 3,244,213,764/39,984
  6. Step 6: Final answer
    x = 81,137.80

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Why These Related Problems?

These problems maintain the same ratio (1.42) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.