Home / 86,286.96-119,075.72-48,561.28

Finding the Fourth Proportional to 86,286.96, 119,075.72 and 48,561.28

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Solution

The fourth proportional to 86,286.96, 119,075.72 and 48,561.28 is: 67,014.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,286.96 : 119,075.72 = 48,561.28 : x
  2. Step 2: Convert to fraction form
    86,286.96/119,075.72 = 48,561.28/x
  3. Step 3: Cross multiply
    86,286.96x = 119,075.72 × 48,561.28
  4. Step 4: Simplify right side
    86,286.96x = 5,782,469,380.12
  5. Step 5: Solve for x
    x = 5,782,469,380.12/86,286.96
  6. Step 6: Final answer
    x = 67,014.41

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.