Home / 72,032.20-108,048.42-19,441.72

Finding the Fourth Proportional to 72,032.20, 108,048.42 and 19,441.72

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Solution

The fourth proportional to 72,032.20, 108,048.42 and 19,441.72 is: 29,162.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,032.20 : 108,048.42 = 19,441.72 : x
  2. Step 2: Convert to fraction form
    72,032.20/108,048.42 = 19,441.72/x
  3. Step 3: Cross multiply
    72,032.20x = 108,048.42 × 19,441.72
  4. Step 4: Simplify right side
    72,032.20x = 2,100,647,128.08
  5. Step 5: Solve for x
    x = 2,100,647,128.08/72,032.20
  6. Step 6: Final answer
    x = 29,162.61

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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.