Home / 87,946.72-131,936.30-28,785.67

Finding the Fourth Proportional to 87,946.72, 131,936.30 and 28,785.67

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Solution

The fourth proportional to 87,946.72, 131,936.30 and 28,785.67 is: 43,183.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,946.72 : 131,936.30 = 28,785.67 : x
  2. Step 2: Convert to fraction form
    87,946.72/131,936.30 = 28,785.67/x
  3. Step 3: Cross multiply
    87,946.72x = 131,936.30 × 28,785.67
  4. Step 4: Simplify right side
    87,946.72x = 3,797,874,792.82
  5. Step 5: Solve for x
    x = 3,797,874,792.82/87,946.72
  6. Step 6: Final answer
    x = 43,183.81

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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.