Home / 66,923.78-100,349.01-30,861.09

Finding the Fourth Proportional to 66,923.78, 100,349.01 and 30,861.09

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Solution

The fourth proportional to 66,923.78, 100,349.01 and 30,861.09 is: 46,274.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,923.78 : 100,349.01 = 30,861.09 : x
  2. Step 2: Convert to fraction form
    66,923.78/100,349.01 = 30,861.09/x
  3. Step 3: Cross multiply
    66,923.78x = 100,349.01 × 30,861.09
  4. Step 4: Simplify right side
    66,923.78x = 3,096,879,829.02
  5. Step 5: Solve for x
    x = 3,096,879,829.02/66,923.78
  6. Step 6: Final answer
    x = 46,274.73

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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.