Home / 83,979.21-125,986.59-27,816.14

Finding the Fourth Proportional to 83,979.21, 125,986.59 and 27,816.14

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Solution

The fourth proportional to 83,979.21, 125,986.59 and 27,816.14 is: 41,730.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,979.21 : 125,986.59 = 27,816.14 : x
  2. Step 2: Convert to fraction form
    83,979.21/125,986.59 = 27,816.14/x
  3. Step 3: Cross multiply
    83,979.21x = 125,986.59 × 27,816.14
  4. Step 4: Simplify right side
    83,979.21x = 3,504,460,940.53
  5. Step 5: Solve for x
    x = 3,504,460,940.53/83,979.21
  6. Step 6: Final answer
    x = 41,730.10

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.