Home / 67,321.08-100,933-20,548.44

Finding the Fourth Proportional to 67,321.08, 100,933 and 20,548.44

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Solution

The fourth proportional to 67,321.08, 100,933 and 20,548.44 is: 30,807.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,321.08 : 100,933 = 20,548.44 : x
  2. Step 2: Convert to fraction form
    67,321.08/100,933 = 20,548.44/x
  3. Step 3: Cross multiply
    67,321.08x = 100,933 × 20,548.44
  4. Step 4: Simplify right side
    67,321.08x = 2,074,015,694.52
  5. Step 5: Solve for x
    x = 2,074,015,694.52/67,321.08
  6. Step 6: Final answer
    x = 30,807.82

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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.