Home / 68,387.97-94,391.15-40,102.77

Finding the Fourth Proportional to 68,387.97, 94,391.15 and 40,102.77

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Solution

The fourth proportional to 68,387.97, 94,391.15 and 40,102.77 is: 55,351.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,387.97 : 94,391.15 = 40,102.77 : x
  2. Step 2: Convert to fraction form
    68,387.97/94,391.15 = 40,102.77/x
  3. Step 3: Cross multiply
    68,387.97x = 94,391.15 × 40,102.77
  4. Step 4: Simplify right side
    68,387.97x = 3,785,346,377.97
  5. Step 5: Solve for x
    x = 3,785,346,377.97/68,387.97
  6. Step 6: Final answer
    x = 55,351.06

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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.