Home / 75,616.26-113,249.41-72,991.86

Finding the Fourth Proportional to 75,616.26, 113,249.41 and 72,991.86

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Solution

The fourth proportional to 75,616.26, 113,249.41 and 72,991.86 is: 109,318.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,616.26 : 113,249.41 = 72,991.86 : x
  2. Step 2: Convert to fraction form
    75,616.26/113,249.41 = 72,991.86/x
  3. Step 3: Cross multiply
    75,616.26x = 113,249.41 × 72,991.86
  4. Step 4: Simplify right side
    75,616.26x = 8,266,285,079.80
  5. Step 5: Solve for x
    x = 8,266,285,079.80/75,616.26
  6. Step 6: Final answer
    x = 109,318.88

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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.