Home / 204,930.76-307,395.86-55,171.21

Finding the Fourth Proportional to 204,930.76, 307,395.86 and 55,171.21

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Solution

The fourth proportional to 204,930.76, 307,395.86 and 55,171.21 is: 82,756.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    204,930.76 : 307,395.86 = 55,171.21 : x
  2. Step 2: Convert to fraction form
    204,930.76/307,395.86 = 55,171.21/x
  3. Step 3: Cross multiply
    204,930.76x = 307,395.86 × 55,171.21
  4. Step 4: Simplify right side
    204,930.76x = 16,959,400,500.84
  5. Step 5: Solve for x
    x = 16,959,400,500.84/204,930.76
  6. Step 6: Final answer
    x = 82,756.74

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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.