Home / 73,105.28-100,885.26-39,571.28

Finding the Fourth Proportional to 73,105.28, 100,885.26 and 39,571.28

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Solution

The fourth proportional to 73,105.28, 100,885.26 and 39,571.28 is: 54,608.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,105.28 : 100,885.26 = 39,571.28 : x
  2. Step 2: Convert to fraction form
    73,105.28/100,885.26 = 39,571.28/x
  3. Step 3: Cross multiply
    73,105.28x = 100,885.26 × 39,571.28
  4. Step 4: Simplify right side
    73,105.28x = 3,992,158,871.33
  5. Step 5: Solve for x
    x = 3,992,158,871.33/73,105.28
  6. Step 6: Final answer
    x = 54,608.35

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.