Home / 76,288.36-114,449.39-25,689.87

Finding the Fourth Proportional to 76,288.36, 114,449.39 and 25,689.87

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Solution

The fourth proportional to 76,288.36, 114,449.39 and 25,689.87 is: 38,540.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,288.36 : 114,449.39 = 25,689.87 : x
  2. Step 2: Convert to fraction form
    76,288.36/114,449.39 = 25,689.87/x
  3. Step 3: Cross multiply
    76,288.36x = 114,449.39 × 25,689.87
  4. Step 4: Simplify right side
    76,288.36x = 2,940,189,249.98
  5. Step 5: Solve for x
    x = 2,940,189,249.98/76,288.36
  6. Step 6: Final answer
    x = 38,540.47

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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.