Home / 86,128.44-118,846.56-49,836.12

Finding the Fourth Proportional to 86,128.44, 118,846.56 and 49,836.12

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Solution

The fourth proportional to 86,128.44, 118,846.56 and 49,836.12 is: 68,767.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,128.44 : 118,846.56 = 49,836.12 : x
  2. Step 2: Convert to fraction form
    86,128.44/118,846.56 = 49,836.12/x
  3. Step 3: Cross multiply
    86,128.44x = 118,846.56 × 49,836.12
  4. Step 4: Simplify right side
    86,128.44x = 5,922,851,425.75
  5. Step 5: Solve for x
    x = 5,922,851,425.75/86,128.44
  6. Step 6: Final answer
    x = 68,767.66

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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.