Home / 76,789.27-115,183.44-19,863.18

Finding the Fourth Proportional to 76,789.27, 115,183.44 and 19,863.18

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Solution

The fourth proportional to 76,789.27, 115,183.44 and 19,863.18 is: 29,794.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,789.27 : 115,183.44 = 19,863.18 : x
  2. Step 2: Convert to fraction form
    76,789.27/115,183.44 = 19,863.18/x
  3. Step 3: Cross multiply
    76,789.27x = 115,183.44 × 19,863.18
  4. Step 4: Simplify right side
    76,789.27x = 2,287,908,825.82
  5. Step 5: Solve for x
    x = 2,287,908,825.82/76,789.27
  6. Step 6: Final answer
    x = 29,794.64

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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.