Home / 86,311.35-129,467.03-23,981.85

Finding the Fourth Proportional to 86,311.35, 129,467.03 and 23,981.85

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Solution

The fourth proportional to 86,311.35, 129,467.03 and 23,981.85 is: 35,972.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,311.35 : 129,467.03 = 23,981.85 : x
  2. Step 2: Convert to fraction form
    86,311.35/129,467.03 = 23,981.85/x
  3. Step 3: Cross multiply
    86,311.35x = 129,467.03 × 23,981.85
  4. Step 4: Simplify right side
    86,311.35x = 3,104,858,773.50
  5. Step 5: Solve for x
    x = 3,104,858,773.50/86,311.35
  6. Step 6: Final answer
    x = 35,972.78

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Similar ratio
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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.