Home / 80,916.92-111,411.26-68,793.56

Finding the Fourth Proportional to 80,916.92, 111,411.26 and 68,793.56

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Solution

The fourth proportional to 80,916.92, 111,411.26 and 68,793.56 is: 94,719.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,916.92 : 111,411.26 = 68,793.56 : x
  2. Step 2: Convert to fraction form
    80,916.92/111,411.26 = 68,793.56/x
  3. Step 3: Cross multiply
    80,916.92x = 111,411.26 × 68,793.56
  4. Step 4: Simplify right side
    80,916.92x = 7,664,377,199.49
  5. Step 5: Solve for x
    x = 7,664,377,199.49/80,916.92
  6. Step 6: Final answer
    x = 94,719.09

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1.5x scale

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.