Home / 71,919.90-107,934.93-50,814.54

Finding the Fourth Proportional to 71,919.90, 107,934.93 and 50,814.54

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Solution

The fourth proportional to 71,919.90, 107,934.93 and 50,814.54 is: 76,260.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,919.90 : 107,934.93 = 50,814.54 : x
  2. Step 2: Convert to fraction form
    71,919.90/107,934.93 = 50,814.54/x
  3. Step 3: Cross multiply
    71,919.90x = 107,934.93 × 50,814.54
  4. Step 4: Simplify right side
    71,919.90x = 5,484,663,817.88
  5. Step 5: Solve for x
    x = 5,484,663,817.88/71,919.90
  6. Step 6: Final answer
    x = 76,260.73

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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.