Home / 87,963.60-131,945.51-21,403.74

Finding the Fourth Proportional to 87,963.60, 131,945.51 and 21,403.74

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Solution

The fourth proportional to 87,963.60, 131,945.51 and 21,403.74 is: 32,105.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,963.60 : 131,945.51 = 21,403.74 : x
  2. Step 2: Convert to fraction form
    87,963.60/131,945.51 = 21,403.74/x
  3. Step 3: Cross multiply
    87,963.60x = 131,945.51 × 21,403.74
  4. Step 4: Simplify right side
    87,963.60x = 2,824,127,390.21
  5. Step 5: Solve for x
    x = 2,824,127,390.21/87,963.60
  6. Step 6: Final answer
    x = 32,105.64

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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.