Home / 68,515.12-102,768.57-18,594.11

Finding the Fourth Proportional to 68,515.12, 102,768.57 and 18,594.11

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Solution

The fourth proportional to 68,515.12, 102,768.57 and 18,594.11 is: 27,890.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,515.12 : 102,768.57 = 18,594.11 : x
  2. Step 2: Convert to fraction form
    68,515.12/102,768.57 = 18,594.11/x
  3. Step 3: Cross multiply
    68,515.12x = 102,768.57 × 18,594.11
  4. Step 4: Simplify right side
    68,515.12x = 1,910,890,095.12
  5. Step 5: Solve for x
    x = 1,910,890,095.12/68,515.12
  6. Step 6: Final answer
    x = 27,890.05

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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.