Home / 86,118.26-118,845.24-47,878.97

Finding the Fourth Proportional to 86,118.26, 118,845.24 and 47,878.97

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Solution

The fourth proportional to 86,118.26, 118,845.24 and 47,878.97 is: 66,074.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,118.26 : 118,845.24 = 47,878.97 : x
  2. Step 2: Convert to fraction form
    86,118.26/118,845.24 = 47,878.97/x
  3. Step 3: Cross multiply
    86,118.26x = 118,845.24 × 47,878.97
  4. Step 4: Simplify right side
    86,118.26x = 5,690,187,680.60
  5. Step 5: Solve for x
    x = 5,690,187,680.60/86,118.26
  6. Step 6: Final answer
    x = 66,074.11

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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.