Home / 69,021.44-103,512.64-19,089.92

Finding the Fourth Proportional to 69,021.44, 103,512.64 and 19,089.92

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Solution

The fourth proportional to 69,021.44, 103,512.64 and 19,089.92 is: 28,629.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,021.44 : 103,512.64 = 19,089.92 : x
  2. Step 2: Convert to fraction form
    69,021.44/103,512.64 = 19,089.92/x
  3. Step 3: Cross multiply
    69,021.44x = 103,512.64 × 19,089.92
  4. Step 4: Simplify right side
    69,021.44x = 1,976,048,016.59
  5. Step 5: Solve for x
    x = 1,976,048,016.59/69,021.44
  6. Step 6: Final answer
    x = 28,629.48

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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.