Home / 72,519.46-108,765.96-30,388.27

Finding the Fourth Proportional to 72,519.46, 108,765.96 and 30,388.27

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Solution

The fourth proportional to 72,519.46, 108,765.96 and 30,388.27 is: 45,576.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,519.46 : 108,765.96 = 30,388.27 : x
  2. Step 2: Convert to fraction form
    72,519.46/108,765.96 = 30,388.27/x
  3. Step 3: Cross multiply
    72,519.46x = 108,765.96 × 30,388.27
  4. Step 4: Simplify right side
    72,519.46x = 3,305,209,359.29
  5. Step 5: Solve for x
    x = 3,305,209,359.29/72,519.46
  6. Step 6: Final answer
    x = 45,576.86

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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.