Home / 47,874.26-71,778.08-21,205.77

Finding the Fourth Proportional to 47,874.26, 71,778.08 and 21,205.77

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Solution

The fourth proportional to 47,874.26, 71,778.08 and 21,205.77 is: 31,793.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,874.26 : 71,778.08 = 21,205.77 : x
  2. Step 2: Convert to fraction form
    47,874.26/71,778.08 = 21,205.77/x
  3. Step 3: Cross multiply
    47,874.26x = 71,778.08 × 21,205.77
  4. Step 4: Simplify right side
    47,874.26x = 1,522,109,455.52
  5. Step 5: Solve for x
    x = 1,522,109,455.52/47,874.26
  6. Step 6: Final answer
    x = 31,793.90

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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.