Home / 86,198.55-118,968.14-50,381.56

Finding the Fourth Proportional to 86,198.55, 118,968.14 and 50,381.56

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Solution

The fourth proportional to 86,198.55, 118,968.14 and 50,381.56 is: 69,534.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,198.55 : 118,968.14 = 50,381.56 : x
  2. Step 2: Convert to fraction form
    86,198.55/118,968.14 = 50,381.56/x
  3. Step 3: Cross multiply
    86,198.55x = 118,968.14 × 50,381.56
  4. Step 4: Simplify right side
    86,198.55x = 5,993,800,758.16
  5. Step 5: Solve for x
    x = 5,993,800,758.16/86,198.55
  6. Step 6: Final answer
    x = 69,534.82

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1.5x scale

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.