Home / 90,380.78-124,722.26-50,098.30

Finding the Fourth Proportional to 90,380.78, 124,722.26 and 50,098.30

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Solution

The fourth proportional to 90,380.78, 124,722.26 and 50,098.30 is: 69,133.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,380.78 : 124,722.26 = 50,098.30 : x
  2. Step 2: Convert to fraction form
    90,380.78/124,722.26 = 50,098.30/x
  3. Step 3: Cross multiply
    90,380.78x = 124,722.26 × 50,098.30
  4. Step 4: Simplify right side
    90,380.78x = 6,248,373,198.16
  5. Step 5: Solve for x
    x = 6,248,373,198.16/90,380.78
  6. Step 6: Final answer
    x = 69,133.87

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.