Home / 76,826.56-115,239.56-30,046.48

Finding the Fourth Proportional to 76,826.56, 115,239.56 and 30,046.48

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Solution

The fourth proportional to 76,826.56, 115,239.56 and 30,046.48 is: 45,069.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,826.56 : 115,239.56 = 30,046.48 : x
  2. Step 2: Convert to fraction form
    76,826.56/115,239.56 = 30,046.48/x
  3. Step 3: Cross multiply
    76,826.56x = 115,239.56 × 30,046.48
  4. Step 4: Simplify right side
    76,826.56x = 3,462,543,134.75
  5. Step 5: Solve for x
    x = 3,462,543,134.75/76,826.56
  6. Step 6: Final answer
    x = 45,069.61

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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.