Home / 86,215.96-118,975.82-49,912.38

Finding the Fourth Proportional to 86,215.96, 118,975.82 and 49,912.38

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Solution

The fourth proportional to 86,215.96, 118,975.82 and 49,912.38 is: 68,877.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,215.96 : 118,975.82 = 49,912.38 : x
  2. Step 2: Convert to fraction form
    86,215.96/118,975.82 = 49,912.38/x
  3. Step 3: Cross multiply
    86,215.96x = 118,975.82 × 49,912.38
  4. Step 4: Simplify right side
    86,215.96x = 5,938,366,338.65
  5. Step 5: Solve for x
    x = 5,938,366,338.65/86,215.96
  6. Step 6: Final answer
    x = 68,877.81

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1.5x scale

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.