Home / 87,940.06-131,928.54-28,771.09

Finding the Fourth Proportional to 87,940.06, 131,928.54 and 28,771.09

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Solution

The fourth proportional to 87,940.06, 131,928.54 and 28,771.09 is: 43,162.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,940.06 : 131,928.54 = 28,771.09 : x
  2. Step 2: Convert to fraction form
    87,940.06/131,928.54 = 28,771.09/x
  3. Step 3: Cross multiply
    87,940.06x = 131,928.54 × 28,771.09
  4. Step 4: Simplify right side
    87,940.06x = 3,795,727,897.91
  5. Step 5: Solve for x
    x = 3,795,727,897.91/87,940.06
  6. Step 6: Final answer
    x = 43,162.67

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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.