Home / 43,163.30-64,745.10-11,998.52

Finding the Fourth Proportional to 43,163.30, 64,745.10 and 11,998.52

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Solution

The fourth proportional to 43,163.30, 64,745.10 and 11,998.52 is: 17,997.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,163.30 : 64,745.10 = 11,998.52 : x
  2. Step 2: Convert to fraction form
    43,163.30/64,745.10 = 11,998.52/x
  3. Step 3: Cross multiply
    43,163.30x = 64,745.10 × 11,998.52
  4. Step 4: Simplify right side
    43,163.30x = 776,845,377.25
  5. Step 5: Solve for x
    x = 776,845,377.25/43,163.30
  6. Step 6: Final answer
    x = 17,997.82

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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.