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Finding the Fourth Proportional to 40,148.15, 55,404.90 and 22,243.44

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Solution

The fourth proportional to 40,148.15, 55,404.90 and 22,243.44 is: 30,696.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,148.15 : 55,404.90 = 22,243.44 : x
  2. Step 2: Convert to fraction form
    40,148.15/55,404.90 = 22,243.44/x
  3. Step 3: Cross multiply
    40,148.15x = 55,404.90 × 22,243.44
  4. Step 4: Simplify right side
    40,148.15x = 1,232,395,457.64
  5. Step 5: Solve for x
    x = 1,232,395,457.64/40,148.15
  6. Step 6: Final answer
    x = 30,696.20

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.