Home / 276,949.53-415,520.96-87,439.23

Finding the Fourth Proportional to 276,949.53, 415,520.96 and 87,439.23

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Solution

The fourth proportional to 276,949.53, 415,520.96 and 87,439.23 is: 131,189.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    276,949.53 : 415,520.96 = 87,439.23 : x
  2. Step 2: Convert to fraction form
    276,949.53/415,520.96 = 87,439.23/x
  3. Step 3: Cross multiply
    276,949.53x = 415,520.96 × 87,439.23
  4. Step 4: Simplify right side
    276,949.53x = 36,332,832,354.06
  5. Step 5: Solve for x
    x = 36,332,832,354.06/276,949.53
  6. Step 6: Final answer
    x = 131,189.36

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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.