Home / 91,440.94-137,067.84-31,451.44

Finding the Fourth Proportional to 91,440.94, 137,067.84 and 31,451.44

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Solution

The fourth proportional to 91,440.94, 137,067.84 and 31,451.44 is: 47,144.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,440.94 : 137,067.84 = 31,451.44 : x
  2. Step 2: Convert to fraction form
    91,440.94/137,067.84 = 31,451.44/x
  3. Step 3: Cross multiply
    91,440.94x = 137,067.84 × 31,451.44
  4. Step 4: Simplify right side
    91,440.94x = 4,310,980,945.69
  5. Step 5: Solve for x
    x = 4,310,980,945.69/91,440.94
  6. Step 6: Final answer
    x = 47,144.98

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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.