Home / 87,729.37-131,611.82-28,549.15

Finding the Fourth Proportional to 87,729.37, 131,611.82 and 28,549.15

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Solution

The fourth proportional to 87,729.37, 131,611.82 and 28,549.15 is: 42,829.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,729.37 : 131,611.82 = 28,549.15 : x
  2. Step 2: Convert to fraction form
    87,729.37/131,611.82 = 28,549.15/x
  3. Step 3: Cross multiply
    87,729.37x = 131,611.82 × 28,549.15
  4. Step 4: Simplify right side
    87,729.37x = 3,757,405,590.95
  5. Step 5: Solve for x
    x = 3,757,405,590.95/87,729.37
  6. Step 6: Final answer
    x = 42,829.51

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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.