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Finding the Fourth Proportional to 49,408.40, 74,112.60 and 36,124.40

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Solution

The fourth proportional to 49,408.40, 74,112.60 and 36,124.40 is: 54,186.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,408.40 : 74,112.60 = 36,124.40 : x
  2. Step 2: Convert to fraction form
    49,408.40/74,112.60 = 36,124.40/x
  3. Step 3: Cross multiply
    49,408.40x = 74,112.60 × 36,124.40
  4. Step 4: Simplify right side
    49,408.40x = 2,677,273,207.44
  5. Step 5: Solve for x
    x = 2,677,273,207.44/49,408.40
  6. Step 6: Final answer
    x = 54,186.60

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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.