Home / 68,519.10-102,756.76-21,761.04

Finding the Fourth Proportional to 68,519.10, 102,756.76 and 21,761.04

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Solution

The fourth proportional to 68,519.10, 102,756.76 and 21,761.04 is: 32,634.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,519.10 : 102,756.76 = 21,761.04 : x
  2. Step 2: Convert to fraction form
    68,519.10/102,756.76 = 21,761.04/x
  3. Step 3: Cross multiply
    68,519.10x = 102,756.76 × 21,761.04
  4. Step 4: Simplify right side
    68,519.10x = 2,236,093,964.63
  5. Step 5: Solve for x
    x = 2,236,093,964.63/68,519.10
  6. Step 6: Final answer
    x = 32,634.61

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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.