Home / 80,232.44-120,324.02-55,431.86

Finding the Fourth Proportional to 80,232.44, 120,324.02 and 55,431.86

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Solution

The fourth proportional to 80,232.44, 120,324.02 and 55,431.86 is: 83,130.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,232.44 : 120,324.02 = 55,431.86 : x
  2. Step 2: Convert to fraction form
    80,232.44/120,324.02 = 55,431.86/x
  3. Step 3: Cross multiply
    80,232.44x = 120,324.02 × 55,431.86
  4. Step 4: Simplify right side
    80,232.44x = 6,669,783,352.50
  5. Step 5: Solve for x
    x = 6,669,783,352.50/80,232.44
  6. Step 6: Final answer
    x = 83,130.76

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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.