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Finding the Fourth Proportional to 108,309.08, 162,448.56 and 33,431.67

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Solution

The fourth proportional to 108,309.08, 162,448.56 and 33,431.67 is: 50,142.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,309.08 : 162,448.56 = 33,431.67 : x
  2. Step 2: Convert to fraction form
    108,309.08/162,448.56 = 33,431.67/x
  3. Step 3: Cross multiply
    108,309.08x = 162,448.56 × 33,431.67
  4. Step 4: Simplify right side
    108,309.08x = 5,430,926,649.90
  5. Step 5: Solve for x
    x = 5,430,926,649.90/108,309.08
  6. Step 6: Final answer
    x = 50,142.86

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.