Home / 76,850.48-115,285.80-30,097.28

Finding the Fourth Proportional to 76,850.48, 115,285.80 and 30,097.28

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Solution

The fourth proportional to 76,850.48, 115,285.80 and 30,097.28 is: 45,149.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,850.48 : 115,285.80 = 30,097.28 : x
  2. Step 2: Convert to fraction form
    76,850.48/115,285.80 = 30,097.28/x
  3. Step 3: Cross multiply
    76,850.48x = 115,285.80 × 30,097.28
  4. Step 4: Simplify right side
    76,850.48x = 3,469,789,002.62
  5. Step 5: Solve for x
    x = 3,469,789,002.62/76,850.48
  6. Step 6: Final answer
    x = 45,149.87

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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.