Home / 87,718.70-131,579.28-28,554.68

Finding the Fourth Proportional to 87,718.70, 131,579.28 and 28,554.68

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Solution

The fourth proportional to 87,718.70, 131,579.28 and 28,554.68 is: 42,832.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,718.70 : 131,579.28 = 28,554.68 : x
  2. Step 2: Convert to fraction form
    87,718.70/131,579.28 = 28,554.68/x
  3. Step 3: Cross multiply
    87,718.70x = 131,579.28 × 28,554.68
  4. Step 4: Simplify right side
    87,718.70x = 3,757,204,235.03
  5. Step 5: Solve for x
    x = 3,757,204,235.03/87,718.70
  6. Step 6: Final answer
    x = 42,832.42

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1.5x scale

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.