Home / 88,381.21-132,572.09-21,821.33

Finding the Fourth Proportional to 88,381.21, 132,572.09 and 21,821.33

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Solution

The fourth proportional to 88,381.21, 132,572.09 and 21,821.33 is: 32,732.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,381.21 : 132,572.09 = 21,821.33 : x
  2. Step 2: Convert to fraction form
    88,381.21/132,572.09 = 21,821.33/x
  3. Step 3: Cross multiply
    88,381.21x = 132,572.09 × 21,821.33
  4. Step 4: Simplify right side
    88,381.21x = 2,892,899,324.68
  5. Step 5: Solve for x
    x = 2,892,899,324.68/88,381.21
  6. Step 6: Final answer
    x = 32,732.06

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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.