Home / 88,379.21-132,569.09-21,819.33

Finding the Fourth Proportional to 88,379.21, 132,569.09 and 21,819.33

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Solution

The fourth proportional to 88,379.21, 132,569.09 and 21,819.33 is: 32,729.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,379.21 : 132,569.09 = 21,819.33 : x
  2. Step 2: Convert to fraction form
    88,379.21/132,569.09 = 21,819.33/x
  3. Step 3: Cross multiply
    88,379.21x = 132,569.09 × 21,819.33
  4. Step 4: Simplify right side
    88,379.21x = 2,892,568,613.41
  5. Step 5: Solve for x
    x = 2,892,568,613.41/88,379.21
  6. Step 6: Final answer
    x = 32,729.06

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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.