Home / 86,121.44-118,857.42-47,884.79

Finding the Fourth Proportional to 86,121.44, 118,857.42 and 47,884.79

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Solution

The fourth proportional to 86,121.44, 118,857.42 and 47,884.79 is: 66,086.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,121.44 : 118,857.42 = 47,884.79 : x
  2. Step 2: Convert to fraction form
    86,121.44/118,857.42 = 47,884.79/x
  3. Step 3: Cross multiply
    86,121.44x = 118,857.42 × 47,884.79
  4. Step 4: Simplify right side
    86,121.44x = 5,691,462,596.64
  5. Step 5: Solve for x
    x = 5,691,462,596.64/86,121.44
  6. Step 6: Final answer
    x = 66,086.48

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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.