Home / 87,660.69-131,504.88-28,482.54

Finding the Fourth Proportional to 87,660.69, 131,504.88 and 28,482.54

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Solution

The fourth proportional to 87,660.69, 131,504.88 and 28,482.54 is: 42,728.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,660.69 : 131,504.88 = 28,482.54 : x
  2. Step 2: Convert to fraction form
    87,660.69/131,504.88 = 28,482.54/x
  3. Step 3: Cross multiply
    87,660.69x = 131,504.88 × 28,482.54
  4. Step 4: Simplify right side
    87,660.69x = 3,745,593,004.80
  5. Step 5: Solve for x
    x = 3,745,593,004.80/87,660.69
  6. Step 6: Final answer
    x = 42,728.31

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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.