Home / 87,998.10-131,948.55-28,803.30

Finding the Fourth Proportional to 87,998.10, 131,948.55 and 28,803.30

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Solution

The fourth proportional to 87,998.10, 131,948.55 and 28,803.30 is: 43,189.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,998.10 : 131,948.55 = 28,803.30 : x
  2. Step 2: Convert to fraction form
    87,998.10/131,948.55 = 28,803.30/x
  3. Step 3: Cross multiply
    87,998.10x = 131,948.55 × 28,803.30
  4. Step 4: Simplify right side
    87,998.10x = 3,800,553,670.22
  5. Step 5: Solve for x
    x = 3,800,553,670.22/87,998.10
  6. Step 6: Final answer
    x = 43,189.04

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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.