Home / 81,565.20-122,339.88-22,409.64

Finding the Fourth Proportional to 81,565.20, 122,339.88 and 22,409.64

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Solution

The fourth proportional to 81,565.20, 122,339.88 and 22,409.64 is: 33,612.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,565.20 : 122,339.88 = 22,409.64 : x
  2. Step 2: Convert to fraction form
    81,565.20/122,339.88 = 22,409.64/x
  3. Step 3: Cross multiply
    81,565.20x = 122,339.88 × 22,409.64
  4. Step 4: Simplify right side
    81,565.20x = 2,741,592,668.44
  5. Step 5: Solve for x
    x = 2,741,592,668.44/81,565.20
  6. Step 6: Final answer
    x = 33,612.28

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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.