Home / 81,542.64-122,314.08-22,379.04

Finding the Fourth Proportional to 81,542.64, 122,314.08 and 22,379.04

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Solution

The fourth proportional to 81,542.64, 122,314.08 and 22,379.04 is: 33,568.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,542.64 : 122,314.08 = 22,379.04 : x
  2. Step 2: Convert to fraction form
    81,542.64/122,314.08 = 22,379.04/x
  3. Step 3: Cross multiply
    81,542.64x = 122,314.08 × 22,379.04
  4. Step 4: Simplify right side
    81,542.64x = 2,737,271,688.88
  5. Step 5: Solve for x
    x = 2,737,271,688.88/81,542.64
  6. Step 6: Final answer
    x = 33,568.59

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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.