Home / 50,499.20-75,751.91-20,919.35

Finding the Fourth Proportional to 50,499.20, 75,751.91 and 20,919.35

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Solution

The fourth proportional to 50,499.20, 75,751.91 and 20,919.35 is: 31,380.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,499.20 : 75,751.91 = 20,919.35 : x
  2. Step 2: Convert to fraction form
    50,499.20/75,751.91 = 20,919.35/x
  3. Step 3: Cross multiply
    50,499.20x = 75,751.91 × 20,919.35
  4. Step 4: Simplify right side
    50,499.20x = 1,584,680,235.10
  5. Step 5: Solve for x
    x = 1,584,680,235.10/50,499.20
  6. Step 6: Final answer
    x = 31,380.31

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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.