Home / 87,898.09-131,845.74-21,338.77

Finding the Fourth Proportional to 87,898.09, 131,845.74 and 21,338.77

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Solution

The fourth proportional to 87,898.09, 131,845.74 and 21,338.77 is: 32,007.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,898.09 : 131,845.74 = 21,338.77 : x
  2. Step 2: Convert to fraction form
    87,898.09/131,845.74 = 21,338.77/x
  3. Step 3: Cross multiply
    87,898.09x = 131,845.74 × 21,338.77
  4. Step 4: Simplify right side
    87,898.09x = 2,813,425,921.34
  5. Step 5: Solve for x
    x = 2,813,425,921.34/87,898.09
  6. Step 6: Final answer
    x = 32,007.82

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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.