Home / 68,190.08-102,299.04-28,747.20

Finding the Fourth Proportional to 68,190.08, 102,299.04 and 28,747.20

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Solution

The fourth proportional to 68,190.08, 102,299.04 and 28,747.20 is: 43,126.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,190.08 : 102,299.04 = 28,747.20 : x
  2. Step 2: Convert to fraction form
    68,190.08/102,299.04 = 28,747.20/x
  3. Step 3: Cross multiply
    68,190.08x = 102,299.04 × 28,747.20
  4. Step 4: Simplify right side
    68,190.08x = 2,940,810,962.69
  5. Step 5: Solve for x
    x = 2,940,810,962.69/68,190.08
  6. Step 6: Final answer
    x = 43,126.67

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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.