Home / 86,217.75-118,991.43-48,499.29

Finding the Fourth Proportional to 86,217.75, 118,991.43 and 48,499.29

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Solution

The fourth proportional to 86,217.75, 118,991.43 and 48,499.29 is: 66,935.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,217.75 : 118,991.43 = 48,499.29 : x
  2. Step 2: Convert to fraction form
    86,217.75/118,991.43 = 48,499.29/x
  3. Step 3: Cross multiply
    86,217.75x = 118,991.43 × 48,499.29
  4. Step 4: Simplify right side
    86,217.75x = 5,770,999,871.08
  5. Step 5: Solve for x
    x = 5,770,999,871.08/86,217.75
  6. Step 6: Final answer
    x = 66,935.17

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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.