Home / 80,912.42-111,660.60-45,098.57

Finding the Fourth Proportional to 80,912.42, 111,660.60 and 45,098.57

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Solution

The fourth proportional to 80,912.42, 111,660.60 and 45,098.57 is: 62,236.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,912.42 : 111,660.60 = 45,098.57 : x
  2. Step 2: Convert to fraction form
    80,912.42/111,660.60 = 45,098.57/x
  3. Step 3: Cross multiply
    80,912.42x = 111,660.60 × 45,098.57
  4. Step 4: Simplify right side
    80,912.42x = 5,035,733,706.77
  5. Step 5: Solve for x
    x = 5,035,733,706.77/80,912.42
  6. Step 6: Final answer
    x = 62,236.85

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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.