Home / 74,540.24-102,867.41-40,550.64

Finding the Fourth Proportional to 74,540.24, 102,867.41 and 40,550.64

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Solution

The fourth proportional to 74,540.24, 102,867.41 and 40,550.64 is: 55,960.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,540.24 : 102,867.41 = 40,550.64 : x
  2. Step 2: Convert to fraction form
    74,540.24/102,867.41 = 40,550.64/x
  3. Step 3: Cross multiply
    74,540.24x = 102,867.41 × 40,550.64
  4. Step 4: Simplify right side
    74,540.24x = 4,171,339,412.02
  5. Step 5: Solve for x
    x = 4,171,339,412.02/74,540.24
  6. Step 6: Final answer
    x = 55,960.90

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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.