Home / 41,139.80-61,660.24-18,922.56

Finding the Fourth Proportional to 41,139.80, 61,660.24 and 18,922.56

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Solution

The fourth proportional to 41,139.80, 61,660.24 and 18,922.56 is: 28,361.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    41,139.80 : 61,660.24 = 18,922.56 : x
  2. Step 2: Convert to fraction form
    41,139.80/61,660.24 = 18,922.56/x
  3. Step 3: Cross multiply
    41,139.80x = 61,660.24 × 18,922.56
  4. Step 4: Simplify right side
    41,139.80x = 1,166,769,591.01
  5. Step 5: Solve for x
    x = 1,166,769,591.01/41,139.80
  6. Step 6: Final answer
    x = 28,361.09

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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.