Home / 86,217.40-118,979.58-48,491.92

Finding the Fourth Proportional to 86,217.40, 118,979.58 and 48,491.92

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Solution

The fourth proportional to 86,217.40, 118,979.58 and 48,491.92 is: 66,918.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,217.40 : 118,979.58 = 48,491.92 : x
  2. Step 2: Convert to fraction form
    86,217.40/118,979.58 = 48,491.92/x
  3. Step 3: Cross multiply
    86,217.40x = 118,979.58 × 48,491.92
  4. Step 4: Simplify right side
    86,217.40x = 5,769,548,274.99
  5. Step 5: Solve for x
    x = 5,769,548,274.99/86,217.40
  6. Step 6: Final answer
    x = 66,918.61

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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.