Home / 68,368.38-102,319.26-57,287.58

Finding the Fourth Proportional to 68,368.38, 102,319.26 and 57,287.58

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Solution

The fourth proportional to 68,368.38, 102,319.26 and 57,287.58 is: 85,735.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,368.38 : 102,319.26 = 57,287.58 : x
  2. Step 2: Convert to fraction form
    68,368.38/102,319.26 = 57,287.58/x
  3. Step 3: Cross multiply
    68,368.38x = 102,319.26 × 57,287.58
  4. Step 4: Simplify right side
    68,368.38x = 5,861,622,792.79
  5. Step 5: Solve for x
    x = 5,861,622,792.79/68,368.38
  6. Step 6: Final answer
    x = 85,735.87

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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.