Home / 86,270.06-129,405.13-23,940.56

Finding the Fourth Proportional to 86,270.06, 129,405.13 and 23,940.56

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Solution

The fourth proportional to 86,270.06, 129,405.13 and 23,940.56 is: 35,910.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,270.06 : 129,405.13 = 23,940.56 : x
  2. Step 2: Convert to fraction form
    86,270.06/129,405.13 = 23,940.56/x
  3. Step 3: Cross multiply
    86,270.06x = 129,405.13 × 23,940.56
  4. Step 4: Simplify right side
    86,270.06x = 3,098,031,542.73
  5. Step 5: Solve for x
    x = 3,098,031,542.73/86,270.06
  6. Step 6: Final answer
    x = 35,910.85

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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.