Home / 82,311.76-123,467.67-19,982.26

Finding the Fourth Proportional to 82,311.76, 123,467.67 and 19,982.26

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Solution

The fourth proportional to 82,311.76, 123,467.67 and 19,982.26 is: 29,973.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,311.76 : 123,467.67 = 19,982.26 : x
  2. Step 2: Convert to fraction form
    82,311.76/123,467.67 = 19,982.26/x
  3. Step 3: Cross multiply
    82,311.76x = 123,467.67 × 19,982.26
  4. Step 4: Simplify right side
    82,311.76x = 2,467,163,083.53
  5. Step 5: Solve for x
    x = 2,467,163,083.53/82,311.76
  6. Step 6: Final answer
    x = 29,973.40

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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.