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Finding the Fourth Proportional to 39,519.84, 54,542.35 and 25,919.31

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Solution

The fourth proportional to 39,519.84, 54,542.35 and 25,919.31 is: 35,771.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,519.84 : 54,542.35 = 25,919.31 : x
  2. Step 2: Convert to fraction form
    39,519.84/54,542.35 = 25,919.31/x
  3. Step 3: Cross multiply
    39,519.84x = 54,542.35 × 25,919.31
  4. Step 4: Simplify right side
    39,519.84x = 1,413,700,077.78
  5. Step 5: Solve for x
    x = 1,413,700,077.78/39,519.84
  6. Step 6: Final answer
    x = 35,771.91

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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.