Home / 68,286.94-102,383.70-30,826.58

Finding the Fourth Proportional to 68,286.94, 102,383.70 and 30,826.58

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Solution

The fourth proportional to 68,286.94, 102,383.70 and 30,826.58 is: 46,218.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,286.94 : 102,383.70 = 30,826.58 : x
  2. Step 2: Convert to fraction form
    68,286.94/102,383.70 = 30,826.58/x
  3. Step 3: Cross multiply
    68,286.94x = 102,383.70 × 30,826.58
  4. Step 4: Simplify right side
    68,286.94x = 3,156,138,975.12
  5. Step 5: Solve for x
    x = 3,156,138,975.12/68,286.94
  6. Step 6: Final answer
    x = 46,218.78

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.