Home / 76,909.62-115,372.66-32,540.86

Finding the Fourth Proportional to 76,909.62, 115,372.66 and 32,540.86

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Solution

The fourth proportional to 76,909.62, 115,372.66 and 32,540.86 is: 48,814.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,909.62 : 115,372.66 = 32,540.86 : x
  2. Step 2: Convert to fraction form
    76,909.62/115,372.66 = 32,540.86/x
  3. Step 3: Cross multiply
    76,909.62x = 115,372.66 × 32,540.86
  4. Step 4: Simplify right side
    76,909.62x = 3,754,325,576.89
  5. Step 5: Solve for x
    x = 3,754,325,576.89/76,909.62
  6. Step 6: Final answer
    x = 48,814.77

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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.