Home / 67,604.32-101,395.60-20,218.72

Finding the Fourth Proportional to 67,604.32, 101,395.60 and 20,218.72

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Solution

The fourth proportional to 67,604.32, 101,395.60 and 20,218.72 is: 30,324.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,604.32 : 101,395.60 = 20,218.72 : x
  2. Step 2: Convert to fraction form
    67,604.32/101,395.60 = 20,218.72/x
  3. Step 3: Cross multiply
    67,604.32x = 101,395.60 × 20,218.72
  4. Step 4: Simplify right side
    67,604.32x = 2,050,089,245.63
  5. Step 5: Solve for x
    x = 2,050,089,245.63/67,604.32
  6. Step 6: Final answer
    x = 30,324.83

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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.