Home / 76,839.48-115,231.51-32,469.67

Finding the Fourth Proportional to 76,839.48, 115,231.51 and 32,469.67

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Solution

The fourth proportional to 76,839.48, 115,231.51 and 32,469.67 is: 48,692.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,839.48 : 115,231.51 = 32,469.67 : x
  2. Step 2: Convert to fraction form
    76,839.48/115,231.51 = 32,469.67/x
  3. Step 3: Cross multiply
    76,839.48x = 115,231.51 × 32,469.67
  4. Step 4: Simplify right side
    76,839.48x = 3,741,529,103.30
  5. Step 5: Solve for x
    x = 3,741,529,103.30/76,839.48
  6. Step 6: Final answer
    x = 48,692.80

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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.