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Finding the Fourth Proportional to 69,804.72, 104,630.92 and 34,290.48

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Solution

The fourth proportional to 69,804.72, 104,630.92 and 34,290.48 is: 51,398.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,804.72 : 104,630.92 = 34,290.48 : x
  2. Step 2: Convert to fraction form
    69,804.72/104,630.92 = 34,290.48/x
  3. Step 3: Cross multiply
    69,804.72x = 104,630.92 × 34,290.48
  4. Step 4: Simplify right side
    69,804.72x = 3,587,844,469.64
  5. Step 5: Solve for x
    x = 3,587,844,469.64/69,804.72
  6. Step 6: Final answer
    x = 51,398.31

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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.