Home / 71,172.44-106,756.57-18,581.92

Finding the Fourth Proportional to 71,172.44, 106,756.57 and 18,581.92

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Solution

The fourth proportional to 71,172.44, 106,756.57 and 18,581.92 is: 27,872.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,172.44 : 106,756.57 = 18,581.92 : x
  2. Step 2: Convert to fraction form
    71,172.44/106,756.57 = 18,581.92/x
  3. Step 3: Cross multiply
    71,172.44x = 106,756.57 × 18,581.92
  4. Step 4: Simplify right side
    71,172.44x = 1,983,741,799.55
  5. Step 5: Solve for x
    x = 1,983,741,799.55/71,172.44
  6. Step 6: Final answer
    x = 27,872.33

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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.