Home / 86,188.69-118,942.82-47,949.46

Finding the Fourth Proportional to 86,188.69, 118,942.82 and 47,949.46

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Solution

The fourth proportional to 86,188.69, 118,942.82 and 47,949.46 is: 66,171.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,188.69 : 118,942.82 = 47,949.46 : x
  2. Step 2: Convert to fraction form
    86,188.69/118,942.82 = 47,949.46/x
  3. Step 3: Cross multiply
    86,188.69x = 118,942.82 × 47,949.46
  4. Step 4: Simplify right side
    86,188.69x = 5,703,243,989.88
  5. Step 5: Solve for x
    x = 5,703,243,989.88/86,188.69
  6. Step 6: Final answer
    x = 66,171.61

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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.