Home / 80,720.80-121,099.62-24,568.86

Finding the Fourth Proportional to 80,720.80, 121,099.62 and 24,568.86

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Solution

The fourth proportional to 80,720.80, 121,099.62 and 24,568.86 is: 36,858.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,720.80 : 121,099.62 = 24,568.86 : x
  2. Step 2: Convert to fraction form
    80,720.80/121,099.62 = 24,568.86/x
  3. Step 3: Cross multiply
    80,720.80x = 121,099.62 × 24,568.86
  4. Step 4: Simplify right side
    80,720.80x = 2,975,279,761.21
  5. Step 5: Solve for x
    x = 2,975,279,761.21/80,720.80
  6. Step 6: Final answer
    x = 36,858.90

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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.