Home / 76,778.52-115,151.46-32,388.12

Finding the Fourth Proportional to 76,778.52, 115,151.46 and 32,388.12

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Solution

The fourth proportional to 76,778.52, 115,151.46 and 32,388.12 is: 48,575.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,778.52 : 115,151.46 = 32,388.12 : x
  2. Step 2: Convert to fraction form
    76,778.52/115,151.46 = 32,388.12/x
  3. Step 3: Cross multiply
    76,778.52x = 115,151.46 × 32,388.12
  4. Step 4: Simplify right side
    76,778.52x = 3,729,539,304.66
  5. Step 5: Solve for x
    x = 3,729,539,304.66/76,778.52
  6. Step 6: Final answer
    x = 48,575.30

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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.