Home / 86,121.37-118,851.45-47,884.81

Finding the Fourth Proportional to 86,121.37, 118,851.45 and 47,884.81

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Solution

The fourth proportional to 86,121.37, 118,851.45 and 47,884.81 is: 66,083.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,121.37 : 118,851.45 = 47,884.81 : x
  2. Step 2: Convert to fraction form
    86,121.37/118,851.45 = 47,884.81/x
  3. Step 3: Cross multiply
    86,121.37x = 118,851.45 × 47,884.81
  4. Step 4: Simplify right side
    86,121.37x = 5,691,178,847.62
  5. Step 5: Solve for x
    x = 5,691,178,847.62/86,121.37
  6. Step 6: Final answer
    x = 66,083.24

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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.