Home / 80,936.48-121,439.77-43,452.81

Finding the Fourth Proportional to 80,936.48, 121,439.77 and 43,452.81

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Solution

The fourth proportional to 80,936.48, 121,439.77 and 43,452.81 is: 65,198.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,936.48 : 121,439.77 = 43,452.81 : x
  2. Step 2: Convert to fraction form
    80,936.48/121,439.77 = 43,452.81/x
  3. Step 3: Cross multiply
    80,936.48x = 121,439.77 × 43,452.81
  4. Step 4: Simplify right side
    80,936.48x = 5,276,899,143.62
  5. Step 5: Solve for x
    x = 5,276,899,143.62/80,936.48
  6. Step 6: Final answer
    x = 65,198.03

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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.