Home / 76,105.86-114,163.78-19,947.34

Finding the Fourth Proportional to 76,105.86, 114,163.78 and 19,947.34

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Solution

The fourth proportional to 76,105.86, 114,163.78 and 19,947.34 is: 29,922.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,105.86 : 114,163.78 = 19,947.34 : x
  2. Step 2: Convert to fraction form
    76,105.86/114,163.78 = 19,947.34/x
  3. Step 3: Cross multiply
    76,105.86x = 114,163.78 × 19,947.34
  4. Step 4: Simplify right side
    76,105.86x = 2,277,263,735.35
  5. Step 5: Solve for x
    x = 2,277,263,735.35/76,105.86
  6. Step 6: Final answer
    x = 29,922.32

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1.5x scale

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.