Home / 49,850.37-74,789.67-20,289.42

Finding the Fourth Proportional to 49,850.37, 74,789.67 and 20,289.42

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Solution

The fourth proportional to 49,850.37, 74,789.67 and 20,289.42 is: 30,439.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,850.37 : 74,789.67 = 20,289.42 : x
  2. Step 2: Convert to fraction form
    49,850.37/74,789.67 = 20,289.42/x
  3. Step 3: Cross multiply
    49,850.37x = 74,789.67 × 20,289.42
  4. Step 4: Simplify right side
    49,850.37x = 1,517,439,026.29
  5. Step 5: Solve for x
    x = 1,517,439,026.29/49,850.37
  6. Step 6: Final answer
    x = 30,439.87

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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.