Home / 40,078.44-60,100.92-11,988.36

Finding the Fourth Proportional to 40,078.44, 60,100.92 and 11,988.36

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Solution

The fourth proportional to 40,078.44, 60,100.92 and 11,988.36 is: 17,977.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,078.44 : 60,100.92 = 11,988.36 : x
  2. Step 2: Convert to fraction form
    40,078.44/60,100.92 = 11,988.36/x
  3. Step 3: Cross multiply
    40,078.44x = 60,100.92 × 11,988.36
  4. Step 4: Simplify right side
    40,078.44x = 720,511,465.29
  5. Step 5: Solve for x
    x = 720,511,465.29/40,078.44
  6. Step 6: Final answer
    x = 17,977.53

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.