Home / 86,458.20-129,676.37-27,299.85

Finding the Fourth Proportional to 86,458.20, 129,676.37 and 27,299.85

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Solution

The fourth proportional to 86,458.20, 129,676.37 and 27,299.85 is: 40,946.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,458.20 : 129,676.37 = 27,299.85 : x
  2. Step 2: Convert to fraction form
    86,458.20/129,676.37 = 27,299.85/x
  3. Step 3: Cross multiply
    86,458.20x = 129,676.37 × 27,299.85
  4. Step 4: Simplify right side
    86,458.20x = 3,540,145,313.05
  5. Step 5: Solve for x
    x = 3,540,145,313.05/86,458.20
  6. Step 6: Final answer
    x = 40,946.32

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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.