Home / 50,499.32-75,752.09-20,919.47

Finding the Fourth Proportional to 50,499.32, 75,752.09 and 20,919.47

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Solution

The fourth proportional to 50,499.32, 75,752.09 and 20,919.47 is: 31,380.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,499.32 : 75,752.09 = 20,919.47 : x
  2. Step 2: Convert to fraction form
    50,499.32/75,752.09 = 20,919.47/x
  3. Step 3: Cross multiply
    50,499.32x = 75,752.09 × 20,919.47
  4. Step 4: Simplify right side
    50,499.32x = 1,584,693,469.59
  5. Step 5: Solve for x
    x = 1,584,693,469.59/50,499.32
  6. Step 6: Final answer
    x = 31,380.49

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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.