Home / 87,836.88-131,755.37-21,277.07

Finding the Fourth Proportional to 87,836.88, 131,755.37 and 21,277.07

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Solution

The fourth proportional to 87,836.88, 131,755.37 and 21,277.07 is: 31,915.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,836.88 : 131,755.37 = 21,277.07 : x
  2. Step 2: Convert to fraction form
    87,836.88/131,755.37 = 21,277.07/x
  3. Step 3: Cross multiply
    87,836.88x = 131,755.37 × 21,277.07
  4. Step 4: Simplify right side
    87,836.88x = 2,803,367,465.20
  5. Step 5: Solve for x
    x = 2,803,367,465.20/87,836.88
  6. Step 6: Final answer
    x = 31,915.61

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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.