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Finding the Fourth Proportional to 53,791.29, 74,235.69 and 29,920.19

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Solution

The fourth proportional to 53,791.29, 74,235.69 and 29,920.19 is: 41,291.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,791.29 : 74,235.69 = 29,920.19 : x
  2. Step 2: Convert to fraction form
    53,791.29/74,235.69 = 29,920.19/x
  3. Step 3: Cross multiply
    53,791.29x = 74,235.69 × 29,920.19
  4. Step 4: Simplify right side
    53,791.29x = 2,221,145,578.40
  5. Step 5: Solve for x
    x = 2,221,145,578.40/53,791.29
  6. Step 6: Final answer
    x = 41,291.92

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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.