Home / 50,500.20-75,753.41-20,920.35

Finding the Fourth Proportional to 50,500.20, 75,753.41 and 20,920.35

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Solution

The fourth proportional to 50,500.20, 75,753.41 and 20,920.35 is: 31,381.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,500.20 : 75,753.41 = 20,920.35 : x
  2. Step 2: Convert to fraction form
    50,500.20/75,753.41 = 20,920.35/x
  3. Step 3: Cross multiply
    50,500.20x = 75,753.41 × 20,920.35
  4. Step 4: Simplify right side
    50,500.20x = 1,584,787,850.89
  5. Step 5: Solve for x
    x = 1,584,787,850.89/50,500.20
  6. Step 6: Final answer
    x = 31,381.81

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1.5x scale

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.