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Finding the Fourth Proportional to 54,971.70, 75,861.09 and 29,821.20

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Solution

The fourth proportional to 54,971.70, 75,861.09 and 29,821.20 is: 41,153.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,971.70 : 75,861.09 = 29,821.20 : x
  2. Step 2: Convert to fraction form
    54,971.70/75,861.09 = 29,821.20/x
  3. Step 3: Cross multiply
    54,971.70x = 75,861.09 × 29,821.20
  4. Step 4: Simplify right side
    54,971.70x = 2,262,268,208.70
  5. Step 5: Solve for x
    x = 2,262,268,208.70/54,971.70
  6. Step 6: Final answer
    x = 41,153.33

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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.