Home / 71,382.24-107,082-67,451.04

Finding the Fourth Proportional to 71,382.24, 107,082 and 67,451.04

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Solution

The fourth proportional to 71,382.24, 107,082 and 67,451.04 is: 101,184.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,382.24 : 107,082 = 67,451.04 : x
  2. Step 2: Convert to fraction form
    71,382.24/107,082 = 67,451.04/x
  3. Step 3: Cross multiply
    71,382.24x = 107,082 × 67,451.04
  4. Step 4: Simplify right side
    71,382.24x = 7,222,792,265.28
  5. Step 5: Solve for x
    x = 7,222,792,265.28/71,382.24
  6. Step 6: Final answer
    x = 101,184.72

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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.