Home / 68,681.28-102,847.68-57,558.72

Finding the Fourth Proportional to 68,681.28, 102,847.68 and 57,558.72

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Solution

The fourth proportional to 68,681.28, 102,847.68 and 57,558.72 is: 86,192.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,681.28 : 102,847.68 = 57,558.72 : x
  2. Step 2: Convert to fraction form
    68,681.28/102,847.68 = 57,558.72/x
  3. Step 3: Cross multiply
    68,681.28x = 102,847.68 × 57,558.72
  4. Step 4: Simplify right side
    68,681.28x = 5,919,780,815.77
  5. Step 5: Solve for x
    x = 5,919,780,815.77/68,681.28
  6. Step 6: Final answer
    x = 86,192.06

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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.