Home / 87,983.87-131,948.01-28,805.94

Finding the Fourth Proportional to 87,983.87, 131,948.01 and 28,805.94

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Solution

The fourth proportional to 87,983.87, 131,948.01 and 28,805.94 is: 43,199.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,983.87 : 131,948.01 = 28,805.94 : x
  2. Step 2: Convert to fraction form
    87,983.87/131,948.01 = 28,805.94/x
  3. Step 3: Cross multiply
    87,983.87x = 131,948.01 × 28,805.94
  4. Step 4: Simplify right side
    87,983.87x = 3,800,886,459.18
  5. Step 5: Solve for x
    x = 3,800,886,459.18/87,983.87
  6. Step 6: Final answer
    x = 43,199.81

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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.