Home / 87,873.06-131,813.64-28,709.04

Finding the Fourth Proportional to 87,873.06, 131,813.64 and 28,709.04

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Solution

The fourth proportional to 87,873.06, 131,813.64 and 28,709.04 is: 43,064.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,873.06 : 131,813.64 = 28,709.04 : x
  2. Step 2: Convert to fraction form
    87,873.06/131,813.64 = 28,709.04/x
  3. Step 3: Cross multiply
    87,873.06x = 131,813.64 × 28,709.04
  4. Step 4: Simplify right side
    87,873.06x = 3,784,243,063.31
  5. Step 5: Solve for x
    x = 3,784,243,063.31/87,873.06
  6. Step 6: Final answer
    x = 43,064.88

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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.