Home / 87,404.20-131,106.30-28,241.80

Finding the Fourth Proportional to 87,404.20, 131,106.30 and 28,241.80

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Solution

The fourth proportional to 87,404.20, 131,106.30 and 28,241.80 is: 42,362.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,404.20 : 131,106.30 = 28,241.80 : x
  2. Step 2: Convert to fraction form
    87,404.20/131,106.30 = 28,241.80/x
  3. Step 3: Cross multiply
    87,404.20x = 131,106.30 × 28,241.80
  4. Step 4: Simplify right side
    87,404.20x = 3,702,677,903.34
  5. Step 5: Solve for x
    x = 3,702,677,903.34/87,404.20
  6. Step 6: Final answer
    x = 42,362.70

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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.