Home / 87,944.62-131,915.08-21,385.09

Finding the Fourth Proportional to 87,944.62, 131,915.08 and 21,385.09

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Solution

The fourth proportional to 87,944.62, 131,915.08 and 21,385.09 is: 32,077.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,944.62 : 131,915.08 = 21,385.09 : x
  2. Step 2: Convert to fraction form
    87,944.62/131,915.08 = 21,385.09/x
  3. Step 3: Cross multiply
    87,944.62x = 131,915.08 × 21,385.09
  4. Step 4: Simplify right side
    87,944.62x = 2,821,015,858.16
  5. Step 5: Solve for x
    x = 2,821,015,858.16/87,944.62
  6. Step 6: Final answer
    x = 32,077.19

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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.