Home / 87,789.26-131,696.58-28,610.30

Finding the Fourth Proportional to 87,789.26, 131,696.58 and 28,610.30

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Solution

The fourth proportional to 87,789.26, 131,696.58 and 28,610.30 is: 42,919.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,789.26 : 131,696.58 = 28,610.30 : x
  2. Step 2: Convert to fraction form
    87,789.26/131,696.58 = 28,610.30/x
  3. Step 3: Cross multiply
    87,789.26x = 131,696.58 × 28,610.30
  4. Step 4: Simplify right side
    87,789.26x = 3,767,878,662.77
  5. Step 5: Solve for x
    x = 3,767,878,662.77/87,789.26
  6. Step 6: Final answer
    x = 42,919.59

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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.