Home / 86,120.62-118,850.41-47,884.06

Finding the Fourth Proportional to 86,120.62, 118,850.41 and 47,884.06

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Solution

The fourth proportional to 86,120.62, 118,850.41 and 47,884.06 is: 66,082.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,120.62 : 118,850.41 = 47,884.06 : x
  2. Step 2: Convert to fraction form
    86,120.62/118,850.41 = 47,884.06/x
  3. Step 3: Cross multiply
    86,120.62x = 118,850.41 × 47,884.06
  4. Step 4: Simplify right side
    86,120.62x = 5,691,039,986.05
  5. Step 5: Solve for x
    x = 5,691,039,986.05/86,120.62
  6. Step 6: Final answer
    x = 66,082.20

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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.