Home / 40,986.78-56,540.36-25,874

Finding the Fourth Proportional to 40,986.78, 56,540.36 and 25,874

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Solution

The fourth proportional to 40,986.78, 56,540.36 and 25,874 is: 35,692.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,986.78 : 56,540.36 = 25,874 : x
  2. Step 2: Convert to fraction form
    40,986.78/56,540.36 = 25,874/x
  3. Step 3: Cross multiply
    40,986.78x = 56,540.36 × 25,874
  4. Step 4: Simplify right side
    40,986.78x = 1,462,925,274.64
  5. Step 5: Solve for x
    x = 1,462,925,274.64/40,986.78
  6. Step 6: Final answer
    x = 35,692.61

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Why These Related Problems?

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