Home / 72,408.36-108,556.94-27,429.06

Finding the Fourth Proportional to 72,408.36, 108,556.94 and 27,429.06

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Solution

The fourth proportional to 72,408.36, 108,556.94 and 27,429.06 is: 41,122.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,408.36 : 108,556.94 = 27,429.06 : x
  2. Step 2: Convert to fraction form
    72,408.36/108,556.94 = 27,429.06/x
  3. Step 3: Cross multiply
    72,408.36x = 108,556.94 × 27,429.06
  4. Step 4: Simplify right side
    72,408.36x = 2,977,614,683.53
  5. Step 5: Solve for x
    x = 2,977,614,683.53/72,408.36
  6. Step 6: Final answer
    x = 41,122.53

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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.