Home / 80,916.20-111,664.68-44,621.72

Finding the Fourth Proportional to 80,916.20, 111,664.68 and 44,621.72

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Solution

The fourth proportional to 80,916.20, 111,664.68 and 44,621.72 is: 61,578.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,916.20 : 111,664.68 = 44,621.72 : x
  2. Step 2: Convert to fraction form
    80,916.20/111,664.68 = 44,621.72/x
  3. Step 3: Cross multiply
    80,916.20x = 111,664.68 × 44,621.72
  4. Step 4: Simplify right side
    80,916.20x = 4,982,670,084.85
  5. Step 5: Solve for x
    x = 4,982,670,084.85/80,916.20
  6. Step 6: Final answer
    x = 61,578.15

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Why These Related Problems?

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