Home / 86,309.55-129,464.33-27,163.35

Finding the Fourth Proportional to 86,309.55, 129,464.33 and 27,163.35

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Solution

The fourth proportional to 86,309.55, 129,464.33 and 27,163.35 is: 40,745.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,309.55 : 129,464.33 = 27,163.35 : x
  2. Step 2: Convert to fraction form
    86,309.55/129,464.33 = 27,163.35/x
  3. Step 3: Cross multiply
    86,309.55x = 129,464.33 × 27,163.35
  4. Step 4: Simplify right side
    86,309.55x = 3,516,684,772.49
  5. Step 5: Solve for x
    x = 3,516,684,772.49/86,309.55
  6. Step 6: Final answer
    x = 40,745.03

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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.