Home / 87,841.70-131,775.33-28,662.80

Finding the Fourth Proportional to 87,841.70, 131,775.33 and 28,662.80

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Solution

The fourth proportional to 87,841.70, 131,775.33 and 28,662.80 is: 42,998.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,841.70 : 131,775.33 = 28,662.80 : x
  2. Step 2: Convert to fraction form
    87,841.70/131,775.33 = 28,662.80/x
  3. Step 3: Cross multiply
    87,841.70x = 131,775.33 × 28,662.80
  4. Step 4: Simplify right side
    87,841.70x = 3,777,049,928.72
  5. Step 5: Solve for x
    x = 3,777,049,928.72/87,841.70
  6. Step 6: Final answer
    x = 42,998.37

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1.5x scale

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.