Home / 87,446.46-131,173.79-28,286.74

Finding the Fourth Proportional to 87,446.46, 131,173.79 and 28,286.74

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Solution

The fourth proportional to 87,446.46, 131,173.79 and 28,286.74 is: 42,431.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,446.46 : 131,173.79 = 28,286.74 : x
  2. Step 2: Convert to fraction form
    87,446.46/131,173.79 = 28,286.74/x
  3. Step 3: Cross multiply
    87,446.46x = 131,173.79 × 28,286.74
  4. Step 4: Simplify right side
    87,446.46x = 3,710,478,892.54
  5. Step 5: Solve for x
    x = 3,710,478,892.54/87,446.46
  6. Step 6: Final answer
    x = 42,431.44

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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.