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Finding the Fourth Proportional to 73,516.80, 110,275.20 and 66,737.10

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Solution

The fourth proportional to 73,516.80, 110,275.20 and 66,737.10 is: 100,105.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,516.80 : 110,275.20 = 66,737.10 : x
  2. Step 2: Convert to fraction form
    73,516.80/110,275.20 = 66,737.10/x
  3. Step 3: Cross multiply
    73,516.80x = 110,275.20 × 66,737.10
  4. Step 4: Simplify right side
    73,516.80x = 7,359,447,049.92
  5. Step 5: Solve for x
    x = 7,359,447,049.92/73,516.80
  6. Step 6: Final answer
    x = 100,105.65

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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.