Home / 66,516.20-99,806.70-50,715.80

Finding the Fourth Proportional to 66,516.20, 99,806.70 and 50,715.80

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Solution

The fourth proportional to 66,516.20, 99,806.70 and 50,715.80 is: 76,098.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,516.20 : 99,806.70 = 50,715.80 : x
  2. Step 2: Convert to fraction form
    66,516.20/99,806.70 = 50,715.80/x
  3. Step 3: Cross multiply
    66,516.20x = 99,806.70 × 50,715.80
  4. Step 4: Simplify right side
    66,516.20x = 5,061,776,635.86
  5. Step 5: Solve for x
    x = 5,061,776,635.86/66,516.20
  6. Step 6: Final answer
    x = 76,098.40

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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.