Home / 69,749.81-104,608.94-19,828.80

Finding the Fourth Proportional to 69,749.81, 104,608.94 and 19,828.80

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Solution

The fourth proportional to 69,749.81, 104,608.94 and 19,828.80 is: 29,738.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,749.81 : 104,608.94 = 19,828.80 : x
  2. Step 2: Convert to fraction form
    69,749.81/104,608.94 = 19,828.80/x
  3. Step 3: Cross multiply
    69,749.81x = 104,608.94 × 19,828.80
  4. Step 4: Simplify right side
    69,749.81x = 2,074,269,226.43
  5. Step 5: Solve for x
    x = 2,074,269,226.43/69,749.81
  6. Step 6: Final answer
    x = 29,738.71

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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.