Home / 40,121.11-60,138.23-26,091.21

Finding the Fourth Proportional to 40,121.11, 60,138.23 and 26,091.21

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Solution

The fourth proportional to 40,121.11, 60,138.23 and 26,091.21 is: 39,108.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,121.11 : 60,138.23 = 26,091.21 : x
  2. Step 2: Convert to fraction form
    40,121.11/60,138.23 = 26,091.21/x
  3. Step 3: Cross multiply
    40,121.11x = 60,138.23 × 26,091.21
  4. Step 4: Simplify right side
    40,121.11x = 1,569,079,211.98
  5. Step 5: Solve for x
    x = 1,569,079,211.98/40,121.11
  6. Step 6: Final answer
    x = 39,108.57

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.