Home / 85,218.20-117,601.60-49,429.44

Finding the Fourth Proportional to 85,218.20, 117,601.60 and 49,429.44

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Solution

The fourth proportional to 85,218.20, 117,601.60 and 49,429.44 is: 68,212.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,218.20 : 117,601.60 = 49,429.44 : x
  2. Step 2: Convert to fraction form
    85,218.20/117,601.60 = 49,429.44/x
  3. Step 3: Cross multiply
    85,218.20x = 117,601.60 × 49,429.44
  4. Step 4: Simplify right side
    85,218.20x = 5,812,981,231.10
  5. Step 5: Solve for x
    x = 5,812,981,231.10/85,218.20
  6. Step 6: Final answer
    x = 68,212.91

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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.