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Finding the Fourth Proportional to 70,028.25, 96,640.30 and 38,198.29

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Solution

The fourth proportional to 70,028.25, 96,640.30 and 38,198.29 is: 52,714.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,028.25 : 96,640.30 = 38,198.29 : x
  2. Step 2: Convert to fraction form
    70,028.25/96,640.30 = 38,198.29/x
  3. Step 3: Cross multiply
    70,028.25x = 96,640.30 × 38,198.29
  4. Step 4: Simplify right side
    70,028.25x = 3,691,493,721.89
  5. Step 5: Solve for x
    x = 3,691,493,721.89/70,028.25
  6. Step 6: Final answer
    x = 52,714.35

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.