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Finding the Fourth Proportional to 69,702.57, 104,495.09 and 30,229.97

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Solution

The fourth proportional to 69,702.57, 104,495.09 and 30,229.97 is: 45,319.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,702.57 : 104,495.09 = 30,229.97 : x
  2. Step 2: Convert to fraction form
    69,702.57/104,495.09 = 30,229.97/x
  3. Step 3: Cross multiply
    69,702.57x = 104,495.09 × 30,229.97
  4. Step 4: Simplify right side
    69,702.57x = 3,158,882,762.22
  5. Step 5: Solve for x
    x = 3,158,882,762.22/69,702.57
  6. Step 6: Final answer
    x = 45,319.46

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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.