Home / 40,187.75-60,291.61-12,107.16

Finding the Fourth Proportional to 40,187.75, 60,291.61 and 12,107.16

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Solution

The fourth proportional to 40,187.75, 60,291.61 and 12,107.16 is: 18,163.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,187.75 : 60,291.61 = 12,107.16 : x
  2. Step 2: Convert to fraction form
    40,187.75/60,291.61 = 12,107.16/x
  3. Step 3: Cross multiply
    40,187.75x = 60,291.61 × 12,107.16
  4. Step 4: Simplify right side
    40,187.75x = 729,960,138.66
  5. Step 5: Solve for x
    x = 729,960,138.66/40,187.75
  6. Step 6: Final answer
    x = 18,163.75

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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.