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Finding the Third Proportional to 68,987 and 94,989

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Solution

The third proportional to 68,987 and 94,989 is: 130,791.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,987 : 94,989 = 94,989 : x
  2. Step 2: Convert to fraction form
    68,987/94,989 = 94,989/x
  3. Step 3: Cross multiply
    68,987x = 94,989 × 94,989
  4. Step 4: Simplify right side
    68,987x = 9,022,910,121
  5. Step 5: Solve for x
    x = 9,022,910,121/68,987
  6. Step 6: Final answer
    x = 130,791.46

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.