Home / 87,621.21-131,469.48-28,475.01

Finding the Fourth Proportional to 87,621.21, 131,469.48 and 28,475.01

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Solution

The fourth proportional to 87,621.21, 131,469.48 and 28,475.01 is: 42,724.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,621.21 : 131,469.48 = 28,475.01 : x
  2. Step 2: Convert to fraction form
    87,621.21/131,469.48 = 28,475.01/x
  3. Step 3: Cross multiply
    87,621.21x = 131,469.48 × 28,475.01
  4. Step 4: Simplify right side
    87,621.21x = 3,743,594,757.69
  5. Step 5: Solve for x
    x = 3,743,594,757.69/87,621.21
  6. Step 6: Final answer
    x = 42,724.76

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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.