Home / 87,828.73-131,743.44-21,268.75

Finding the Fourth Proportional to 87,828.73, 131,743.44 and 21,268.75

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Solution

The fourth proportional to 87,828.73, 131,743.44 and 21,268.75 is: 31,903.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,828.73 : 131,743.44 = 21,268.75 : x
  2. Step 2: Convert to fraction form
    87,828.73/131,743.44 = 21,268.75/x
  3. Step 3: Cross multiply
    87,828.73x = 131,743.44 × 21,268.75
  4. Step 4: Simplify right side
    87,828.73x = 2,802,018,289.50
  5. Step 5: Solve for x
    x = 2,802,018,289.50/87,828.73
  6. Step 6: Final answer
    x = 31,903.21

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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.