Home / 71,000.20-106,515.42-21,080.44

Finding the Fourth Proportional to 71,000.20, 106,515.42 and 21,080.44

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Solution

The fourth proportional to 71,000.20, 106,515.42 and 21,080.44 is: 31,625.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,000.20 : 106,515.42 = 21,080.44 : x
  2. Step 2: Convert to fraction form
    71,000.20/106,515.42 = 21,080.44/x
  3. Step 3: Cross multiply
    71,000.20x = 106,515.42 × 21,080.44
  4. Step 4: Simplify right side
    71,000.20x = 2,245,391,920.38
  5. Step 5: Solve for x
    x = 2,245,391,920.38/71,000.20
  6. Step 6: Final answer
    x = 31,625.15

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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.