Home / 49,441.36-74,175.92-19,880

Finding the Fourth Proportional to 49,441.36, 74,175.92 and 19,880

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Solution

The fourth proportional to 49,441.36, 74,175.92 and 19,880 is: 29,825.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,441.36 : 74,175.92 = 19,880 : x
  2. Step 2: Convert to fraction form
    49,441.36/74,175.92 = 19,880/x
  3. Step 3: Cross multiply
    49,441.36x = 74,175.92 × 19,880
  4. Step 4: Simplify right side
    49,441.36x = 1,474,617,289.60
  5. Step 5: Solve for x
    x = 1,474,617,289.60/49,441.36
  6. Step 6: Final answer
    x = 29,825.58

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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.