Home / 29,179.37-43,765.40-8,120.99

Finding the Fourth Proportional to 29,179.37, 43,765.40 and 8,120.99

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Solution

The fourth proportional to 29,179.37, 43,765.40 and 8,120.99 is: 12,180.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,179.37 : 43,765.40 = 8,120.99 : x
  2. Step 2: Convert to fraction form
    29,179.37/43,765.40 = 8,120.99/x
  3. Step 3: Cross multiply
    29,179.37x = 43,765.40 × 8,120.99
  4. Step 4: Simplify right side
    29,179.37x = 355,418,375.75
  5. Step 5: Solve for x
    x = 355,418,375.75/29,179.37
  6. Step 6: Final answer
    x = 12,180.47

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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.