Home / 86,163.84-129,247.38-26,998.20

Finding the Fourth Proportional to 86,163.84, 129,247.38 and 26,998.20

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Solution

The fourth proportional to 86,163.84, 129,247.38 and 26,998.20 is: 40,497.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,163.84 : 129,247.38 = 26,998.20 : x
  2. Step 2: Convert to fraction form
    86,163.84/129,247.38 = 26,998.20/x
  3. Step 3: Cross multiply
    86,163.84x = 129,247.38 × 26,998.20
  4. Step 4: Simplify right side
    86,163.84x = 3,489,446,614.72
  5. Step 5: Solve for x
    x = 3,489,446,614.72/86,163.84
  6. Step 6: Final answer
    x = 40,497.81

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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.