Home / 301,081.26-451,622.09-76,458.54

Finding the Fourth Proportional to 301,081.26, 451,622.09 and 76,458.54

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Solution

The fourth proportional to 301,081.26, 451,622.09 and 76,458.54 is: 114,687.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    301,081.26 : 451,622.09 = 76,458.54 : x
  2. Step 2: Convert to fraction form
    301,081.26/451,622.09 = 76,458.54/x
  3. Step 3: Cross multiply
    301,081.26x = 451,622.09 × 76,458.54
  4. Step 4: Simplify right side
    301,081.26x = 34,530,362,992.75
  5. Step 5: Solve for x
    x = 34,530,362,992.75/301,081.26
  6. Step 6: Final answer
    x = 114,687.85

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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.