Home / 77,067.42-115,601.21-50,435.90

Finding the Fourth Proportional to 77,067.42, 115,601.21 and 50,435.90

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Solution

The fourth proportional to 77,067.42, 115,601.21 and 50,435.90 is: 75,653.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,067.42 : 115,601.21 = 50,435.90 : x
  2. Step 2: Convert to fraction form
    77,067.42/115,601.21 = 50,435.90/x
  3. Step 3: Cross multiply
    77,067.42x = 115,601.21 × 50,435.90
  4. Step 4: Simplify right side
    77,067.42x = 5,830,451,067.44
  5. Step 5: Solve for x
    x = 5,830,451,067.44/77,067.42
  6. Step 6: Final answer
    x = 75,653.90

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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.