Home / 78,745.94-117,993.55-55,098.26

Finding the Fourth Proportional to 78,745.94, 117,993.55 and 55,098.26

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Solution

The fourth proportional to 78,745.94, 117,993.55 and 55,098.26 is: 82,559.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,745.94 : 117,993.55 = 55,098.26 : x
  2. Step 2: Convert to fraction form
    78,745.94/117,993.55 = 55,098.26/x
  3. Step 3: Cross multiply
    78,745.94x = 117,993.55 × 55,098.26
  4. Step 4: Simplify right side
    78,745.94x = 6,501,239,296.22
  5. Step 5: Solve for x
    x = 6,501,239,296.22/78,745.94
  6. Step 6: Final answer
    x = 82,559.68

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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.