Home / 67,409.11-101,099.77-31,855.33

Finding the Fourth Proportional to 67,409.11, 101,099.77 and 31,855.33

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Solution

The fourth proportional to 67,409.11, 101,099.77 and 31,855.33 is: 47,776.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,409.11 : 101,099.77 = 31,855.33 : x
  2. Step 2: Convert to fraction form
    67,409.11/101,099.77 = 31,855.33/x
  3. Step 3: Cross multiply
    67,409.11x = 101,099.77 × 31,855.33
  4. Step 4: Simplify right side
    67,409.11x = 3,220,566,103.92
  5. Step 5: Solve for x
    x = 3,220,566,103.92/67,409.11
  6. Step 6: Final answer
    x = 47,776.42

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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.