Home / 49,912.91-74,869.23-20,323.79

Finding the Fourth Proportional to 49,912.91, 74,869.23 and 20,323.79

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Solution

The fourth proportional to 49,912.91, 74,869.23 and 20,323.79 is: 30,485.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,912.91 : 74,869.23 = 20,323.79 : x
  2. Step 2: Convert to fraction form
    49,912.91/74,869.23 = 20,323.79/x
  3. Step 3: Cross multiply
    49,912.91x = 74,869.23 × 20,323.79
  4. Step 4: Simplify right side
    49,912.91x = 1,521,626,507.98
  5. Step 5: Solve for x
    x = 1,521,626,507.98/49,912.91
  6. Step 6: Final answer
    x = 30,485.63

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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.