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Finding the Third Proportional to 27,036 and 40,878

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Solution

The third proportional to 27,036 and 40,878 is: 61,806.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,036 : 40,878 = 40,878 : x
  2. Step 2: Convert to fraction form
    27,036/40,878 = 40,878/x
  3. Step 3: Cross multiply
    27,036x = 40,878 × 40,878
  4. Step 4: Simplify right side
    27,036x = 1,671,010,884
  5. Step 5: Solve for x
    x = 1,671,010,884/27,036
  6. Step 6: Final answer
    x = 61,806.88

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.