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Finding the Third Proportional to 35,642 and 51,879

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Solution

The third proportional to 35,642 and 51,879 is: 75,512.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,642 : 51,879 = 51,879 : x
  2. Step 2: Convert to fraction form
    35,642/51,879 = 51,879/x
  3. Step 3: Cross multiply
    35,642x = 51,879 × 51,879
  4. Step 4: Simplify right side
    35,642x = 2,691,430,641
  5. Step 5: Solve for x
    x = 2,691,430,641/35,642
  6. Step 6: Final answer
    x = 75,512.90

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Why These Related Problems?

These problems maintain the same ratio (1.46) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.