Home / 86,217.28-118,979.80-48,491.52

Finding the Fourth Proportional to 86,217.28, 118,979.80 and 48,491.52

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Solution

The fourth proportional to 86,217.28, 118,979.80 and 48,491.52 is: 66,918.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,217.28 : 118,979.80 = 48,491.52 : x
  2. Step 2: Convert to fraction form
    86,217.28/118,979.80 = 48,491.52/x
  3. Step 3: Cross multiply
    86,217.28x = 118,979.80 × 48,491.52
  4. Step 4: Simplify right side
    86,217.28x = 5,769,511,351.30
  5. Step 5: Solve for x
    x = 5,769,511,351.30/86,217.28
  6. Step 6: Final answer
    x = 66,918.27

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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.