Home / 78,408.11-108,195.36-44,409.80

Finding the Fourth Proportional to 78,408.11, 108,195.36 and 44,409.80

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Solution

The fourth proportional to 78,408.11, 108,195.36 and 44,409.80 is: 61,281.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,408.11 : 108,195.36 = 44,409.80 : x
  2. Step 2: Convert to fraction form
    78,408.11/108,195.36 = 44,409.80/x
  3. Step 3: Cross multiply
    78,408.11x = 108,195.36 × 44,409.80
  4. Step 4: Simplify right side
    78,408.11x = 4,804,933,757.55
  5. Step 5: Solve for x
    x = 4,804,933,757.55/78,408.11
  6. Step 6: Final answer
    x = 61,281.09

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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.