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Finding the Fourth Proportional to 80,737.68, 111,433.42 and 53,465.70

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Solution

The fourth proportional to 80,737.68, 111,433.42 and 53,465.70 is: 73,792.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,737.68 : 111,433.42 = 53,465.70 : x
  2. Step 2: Convert to fraction form
    80,737.68/111,433.42 = 53,465.70/x
  3. Step 3: Cross multiply
    80,737.68x = 111,433.42 × 53,465.70
  4. Step 4: Simplify right side
    80,737.68x = 5,957,865,803.69
  5. Step 5: Solve for x
    x = 5,957,865,803.69/80,737.68
  6. Step 6: Final answer
    x = 73,792.88

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.