Home / 72,190.43-108,212.92-30,093.80

Finding the Fourth Proportional to 72,190.43, 108,212.92 and 30,093.80

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Solution

The fourth proportional to 72,190.43, 108,212.92 and 30,093.80 is: 45,110.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,190.43 : 108,212.92 = 30,093.80 : x
  2. Step 2: Convert to fraction form
    72,190.43/108,212.92 = 30,093.80/x
  3. Step 3: Cross multiply
    72,190.43x = 108,212.92 × 30,093.80
  4. Step 4: Simplify right side
    72,190.43x = 3,256,537,280.36
  5. Step 5: Solve for x
    x = 3,256,537,280.36/72,190.43
  6. Step 6: Final answer
    x = 45,110.38

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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.