Home / 68,214.72-102,335.92-28,771.96

Finding the Fourth Proportional to 68,214.72, 102,335.92 and 28,771.96

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Solution

The fourth proportional to 68,214.72, 102,335.92 and 28,771.96 is: 43,163.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,214.72 : 102,335.92 = 28,771.96 : x
  2. Step 2: Convert to fraction form
    68,214.72/102,335.92 = 28,771.96/x
  3. Step 3: Cross multiply
    68,214.72x = 102,335.92 × 28,771.96
  4. Step 4: Simplify right side
    68,214.72x = 2,944,404,996.80
  5. Step 5: Solve for x
    x = 2,944,404,996.80/68,214.72
  6. Step 6: Final answer
    x = 43,163.78

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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.