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Finding the Fourth Proportional to 49,638.40, 74,241.60 and 44,411.20

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Solution

The fourth proportional to 49,638.40, 74,241.60 and 44,411.20 is: 66,423.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,638.40 : 74,241.60 = 44,411.20 : x
  2. Step 2: Convert to fraction form
    49,638.40/74,241.60 = 44,411.20/x
  3. Step 3: Cross multiply
    49,638.40x = 74,241.60 × 44,411.20
  4. Step 4: Simplify right side
    49,638.40x = 3,297,158,545.92
  5. Step 5: Solve for x
    x = 3,297,158,545.92/49,638.40
  6. Step 6: Final answer
    x = 66,423.55

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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.