Home / 53,993.28-80,991.72-30,299.52

Finding the Fourth Proportional to 53,993.28, 80,991.72 and 30,299.52

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Solution

The fourth proportional to 53,993.28, 80,991.72 and 30,299.52 is: 45,450.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,993.28 : 80,991.72 = 30,299.52 : x
  2. Step 2: Convert to fraction form
    53,993.28/80,991.72 = 30,299.52/x
  3. Step 3: Cross multiply
    53,993.28x = 80,991.72 × 30,299.52
  4. Step 4: Simplify right side
    53,993.28x = 2,454,010,239.97
  5. Step 5: Solve for x
    x = 2,454,010,239.97/53,993.28
  6. Step 6: Final answer
    x = 45,450.29

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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.