Home / 40,078.18-55,272.81-25,917.22

Finding the Fourth Proportional to 40,078.18, 55,272.81 and 25,917.22

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Solution

The fourth proportional to 40,078.18, 55,272.81 and 25,917.22 is: 35,743.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,078.18 : 55,272.81 = 25,917.22 : x
  2. Step 2: Convert to fraction form
    40,078.18/55,272.81 = 25,917.22/x
  3. Step 3: Cross multiply
    40,078.18x = 55,272.81 × 25,917.22
  4. Step 4: Simplify right side
    40,078.18x = 1,432,517,576.79
  5. Step 5: Solve for x
    x = 1,432,517,576.79/40,078.18
  6. Step 6: Final answer
    x = 35,743.08

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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.