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Finding the Fourth Proportional to 49,143.69, 73,715.54 and 12,207.69

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Solution

The fourth proportional to 49,143.69, 73,715.54 and 12,207.69 is: 18,311.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,143.69 : 73,715.54 = 12,207.69 : x
  2. Step 2: Convert to fraction form
    49,143.69/73,715.54 = 12,207.69/x
  3. Step 3: Cross multiply
    49,143.69x = 73,715.54 × 12,207.69
  4. Step 4: Simplify right side
    49,143.69x = 899,896,399.46
  5. Step 5: Solve for x
    x = 899,896,399.46/49,143.69
  6. Step 6: Final answer
    x = 18,311.54

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