Home / 87,981.37-131,944.25-28,803.42

Finding the Fourth Proportional to 87,981.37, 131,944.25 and 28,803.42

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Solution

The fourth proportional to 87,981.37, 131,944.25 and 28,803.42 is: 43,196.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,981.37 : 131,944.25 = 28,803.42 : x
  2. Step 2: Convert to fraction form
    87,981.37/131,944.25 = 28,803.42/x
  3. Step 3: Cross multiply
    87,981.37x = 131,944.25 × 28,803.42
  4. Step 4: Simplify right side
    87,981.37x = 3,800,445,649.34
  5. Step 5: Solve for x
    x = 3,800,445,649.34/87,981.37
  6. Step 6: Final answer
    x = 43,196.03

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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.