Home / 50,376.87-75,559.14-20,790.90

Finding the Fourth Proportional to 50,376.87, 75,559.14 and 20,790.90

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Solution

The fourth proportional to 50,376.87, 75,559.14 and 20,790.90 is: 31,183.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,376.87 : 75,559.14 = 20,790.90 : x
  2. Step 2: Convert to fraction form
    50,376.87/75,559.14 = 20,790.90/x
  3. Step 3: Cross multiply
    50,376.87x = 75,559.14 × 20,790.90
  4. Step 4: Simplify right side
    50,376.87x = 1,570,942,523.83
  5. Step 5: Solve for x
    x = 1,570,942,523.83/50,376.87
  6. Step 6: Final answer
    x = 31,183.81

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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.