Home / 76,791.45-115,179.39-20,624.27

Finding the Fourth Proportional to 76,791.45, 115,179.39 and 20,624.27

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Solution

The fourth proportional to 76,791.45, 115,179.39 and 20,624.27 is: 30,934.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,791.45 : 115,179.39 = 20,624.27 : x
  2. Step 2: Convert to fraction form
    76,791.45/115,179.39 = 20,624.27/x
  3. Step 3: Cross multiply
    76,791.45x = 115,179.39 × 20,624.27
  4. Step 4: Simplify right side
    76,791.45x = 2,375,490,261.90
  5. Step 5: Solve for x
    x = 2,375,490,261.90/76,791.45
  6. Step 6: Final answer
    x = 30,934.31

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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.