Home / 72,121.54-108,192.55-22,205.79

Finding the Fourth Proportional to 72,121.54, 108,192.55 and 22,205.79

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Solution

The fourth proportional to 72,121.54, 108,192.55 and 22,205.79 is: 33,311.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,121.54 : 108,192.55 = 22,205.79 : x
  2. Step 2: Convert to fraction form
    72,121.54/108,192.55 = 22,205.79/x
  3. Step 3: Cross multiply
    72,121.54x = 108,192.55 × 22,205.79
  4. Step 4: Simplify right side
    72,121.54x = 2,402,500,448.39
  5. Step 5: Solve for x
    x = 2,402,500,448.39/72,121.54
  6. Step 6: Final answer
    x = 33,311.83

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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.