Home / 90,942.96-125,494.84-50,105.31

Finding the Fourth Proportional to 90,942.96, 125,494.84 and 50,105.31

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Solution

The fourth proportional to 90,942.96, 125,494.84 and 50,105.31 is: 69,141.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,942.96 : 125,494.84 = 50,105.31 : x
  2. Step 2: Convert to fraction form
    90,942.96/125,494.84 = 50,105.31/x
  3. Step 3: Cross multiply
    90,942.96x = 125,494.84 × 50,105.31
  4. Step 4: Simplify right side
    90,942.96x = 6,287,957,861.60
  5. Step 5: Solve for x
    x = 6,287,957,861.60/90,942.96
  6. Step 6: Final answer
    x = 69,141.78

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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.