Home / 40,576.87-55,933.09-39,789.55

Finding the Fourth Proportional to 40,576.87, 55,933.09 and 39,789.55

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Solution

The fourth proportional to 40,576.87, 55,933.09 and 39,789.55 is: 54,847.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,576.87 : 55,933.09 = 39,789.55 : x
  2. Step 2: Convert to fraction form
    40,576.87/55,933.09 = 39,789.55/x
  3. Step 3: Cross multiply
    40,576.87x = 55,933.09 × 39,789.55
  4. Step 4: Simplify right side
    40,576.87x = 2,225,552,481.21
  5. Step 5: Solve for x
    x = 2,225,552,481.21/40,576.87
  6. Step 6: Final answer
    x = 54,847.81

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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.