Home / 67,213.11-100,834.25-20,464.77

Finding the Fourth Proportional to 67,213.11, 100,834.25 and 20,464.77

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Solution

The fourth proportional to 67,213.11, 100,834.25 and 20,464.77 is: 30,701.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,213.11 : 100,834.25 = 20,464.77 : x
  2. Step 2: Convert to fraction form
    67,213.11/100,834.25 = 20,464.77/x
  3. Step 3: Cross multiply
    67,213.11x = 100,834.25 × 20,464.77
  4. Step 4: Simplify right side
    67,213.11x = 2,063,549,632.05
  5. Step 5: Solve for x
    x = 2,063,549,632.05/67,213.11
  6. Step 6: Final answer
    x = 30,701.59

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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.