Home / 51,960.44-77,896.92-20,778.68

Finding the Fourth Proportional to 51,960.44, 77,896.92 and 20,778.68

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Solution

The fourth proportional to 51,960.44, 77,896.92 and 20,778.68 is: 31,150.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,960.44 : 77,896.92 = 20,778.68 : x
  2. Step 2: Convert to fraction form
    51,960.44/77,896.92 = 20,778.68/x
  3. Step 3: Cross multiply
    51,960.44x = 77,896.92 × 20,778.68
  4. Step 4: Simplify right side
    51,960.44x = 1,618,595,173.67
  5. Step 5: Solve for x
    x = 1,618,595,173.67/51,960.44
  6. Step 6: Final answer
    x = 31,150.53

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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.