Home / 87,884.42-131,825.44-21,325.10

Finding the Fourth Proportional to 87,884.42, 131,825.44 and 21,325.10

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Solution

The fourth proportional to 87,884.42, 131,825.44 and 21,325.10 is: 31,987.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,884.42 : 131,825.44 = 21,325.10 : x
  2. Step 2: Convert to fraction form
    87,884.42/131,825.44 = 21,325.10/x
  3. Step 3: Cross multiply
    87,884.42x = 131,825.44 × 21,325.10
  4. Step 4: Simplify right side
    87,884.42x = 2,811,190,690.54
  5. Step 5: Solve for x
    x = 2,811,190,690.54/87,884.42
  6. Step 6: Final answer
    x = 31,987.36

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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.