Home / 203,972.11-305,931.74-54,224.57

Finding the Fourth Proportional to 203,972.11, 305,931.74 and 54,224.57

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Solution

The fourth proportional to 203,972.11, 305,931.74 and 54,224.57 is: 81,329.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,972.11 : 305,931.74 = 54,224.57 : x
  2. Step 2: Convert to fraction form
    203,972.11/305,931.74 = 54,224.57/x
  3. Step 3: Cross multiply
    203,972.11x = 305,931.74 × 54,224.57
  4. Step 4: Simplify right side
    203,972.11x = 16,589,017,544.56
  5. Step 5: Solve for x
    x = 16,589,017,544.56/203,972.11
  6. Step 6: Final answer
    x = 81,329.83

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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.