Home / 72,331.05-108,496.58-19,745.85

Finding the Fourth Proportional to 72,331.05, 108,496.58 and 19,745.85

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Solution

The fourth proportional to 72,331.05, 108,496.58 and 19,745.85 is: 29,618.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,331.05 : 108,496.58 = 19,745.85 : x
  2. Step 2: Convert to fraction form
    72,331.05/108,496.58 = 19,745.85/x
  3. Step 3: Cross multiply
    72,331.05x = 108,496.58 × 19,745.85
  4. Step 4: Simplify right side
    72,331.05x = 2,142,357,095.46
  5. Step 5: Solve for x
    x = 2,142,357,095.46/72,331.05
  6. Step 6: Final answer
    x = 29,618.78

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Similar ratio
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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.