Home / 54,977.60-75,830-50,454.90

Finding the Fourth Proportional to 54,977.60, 75,830 and 50,454.90

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Solution

The fourth proportional to 54,977.60, 75,830 and 50,454.90 is: 69,591.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,977.60 : 75,830 = 50,454.90 : x
  2. Step 2: Convert to fraction form
    54,977.60/75,830 = 50,454.90/x
  3. Step 3: Cross multiply
    54,977.60x = 75,830 × 50,454.90
  4. Step 4: Simplify right side
    54,977.60x = 3,825,995,067
  5. Step 5: Solve for x
    x = 3,825,995,067/54,977.60
  6. Step 6: Final answer
    x = 69,591.89

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.