Home / 49,870.36-74,819.61-20,309.41

Finding the Fourth Proportional to 49,870.36, 74,819.61 and 20,309.41

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Solution

The fourth proportional to 49,870.36, 74,819.61 and 20,309.41 is: 30,469.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,870.36 : 74,819.61 = 20,309.41 : x
  2. Step 2: Convert to fraction form
    49,870.36/74,819.61 = 20,309.41/x
  3. Step 3: Cross multiply
    49,870.36x = 74,819.61 × 20,309.41
  4. Step 4: Simplify right side
    49,870.36x = 1,519,542,135.53
  5. Step 5: Solve for x
    x = 1,519,542,135.53/49,870.36
  6. Step 6: Final answer
    x = 30,469.84

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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.