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Finding the Fourth Proportional to 53,394.12, 73,683.90 and 29,520.78

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Solution

The fourth proportional to 53,394.12, 73,683.90 and 29,520.78 is: 40,738.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,394.12 : 73,683.90 = 29,520.78 : x
  2. Step 2: Convert to fraction form
    53,394.12/73,683.90 = 29,520.78/x
  3. Step 3: Cross multiply
    53,394.12x = 73,683.90 × 29,520.78
  4. Step 4: Simplify right side
    53,394.12x = 2,175,206,201.44
  5. Step 5: Solve for x
    x = 2,175,206,201.44/53,394.12
  6. Step 6: Final answer
    x = 40,738.68

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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.