Home / 68,387.38-94,390.33-40,102.18

Finding the Fourth Proportional to 68,387.38, 94,390.33 and 40,102.18

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Solution

The fourth proportional to 68,387.38, 94,390.33 and 40,102.18 is: 55,350.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,387.38 : 94,390.33 = 40,102.18 : x
  2. Step 2: Convert to fraction form
    68,387.38/94,390.33 = 40,102.18/x
  3. Step 3: Cross multiply
    68,387.38x = 94,390.33 × 40,102.18
  4. Step 4: Simplify right side
    68,387.38x = 3,785,258,003.92
  5. Step 5: Solve for x
    x = 3,785,258,003.92/68,387.38
  6. Step 6: Final answer
    x = 55,350.24

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1.5x scale

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.