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Finding the Fourth Proportional to 76,765.99, 115,099.53 and 32,380.87

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Solution

The fourth proportional to 76,765.99, 115,099.53 and 32,380.87 is: 48,550.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,765.99 : 115,099.53 = 32,380.87 : x
  2. Step 2: Convert to fraction form
    76,765.99/115,099.53 = 32,380.87/x
  3. Step 3: Cross multiply
    76,765.99x = 115,099.53 × 32,380.87
  4. Step 4: Simplify right side
    76,765.99x = 3,727,022,917.99
  5. Step 5: Solve for x
    x = 3,727,022,917.99/76,765.99
  6. Step 6: Final answer
    x = 48,550.44

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1.5x scale

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.