Home / 72,022.23-108,035.33-19,431.59

Finding the Fourth Proportional to 72,022.23, 108,035.33 and 19,431.59

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Solution

The fourth proportional to 72,022.23, 108,035.33 and 19,431.59 is: 29,147.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,022.23 : 108,035.33 = 19,431.59 : x
  2. Step 2: Convert to fraction form
    72,022.23/108,035.33 = 19,431.59/x
  3. Step 3: Cross multiply
    72,022.23x = 108,035.33 × 19,431.59
  4. Step 4: Simplify right side
    72,022.23x = 2,099,297,600.74
  5. Step 5: Solve for x
    x = 2,099,297,600.74/72,022.23
  6. Step 6: Final answer
    x = 29,147.91

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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.