Home / 86,896.56-119,921.94-49,170

Finding the Fourth Proportional to 86,896.56, 119,921.94 and 49,170

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Solution

The fourth proportional to 86,896.56, 119,921.94 and 49,170 is: 67,857.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,896.56 : 119,921.94 = 49,170 : x
  2. Step 2: Convert to fraction form
    86,896.56/119,921.94 = 49,170/x
  3. Step 3: Cross multiply
    86,896.56x = 119,921.94 × 49,170
  4. Step 4: Simplify right side
    86,896.56x = 5,896,561,789.80
  5. Step 5: Solve for x
    x = 5,896,561,789.80/86,896.56
  6. Step 6: Final answer
    x = 67,857.25

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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.