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Finding the Fourth Proportional to 55,144, 76,099.08 and 29,993.68

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Solution

The fourth proportional to 55,144, 76,099.08 and 29,993.68 is: 41,391.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,144 : 76,099.08 = 29,993.68 : x
  2. Step 2: Convert to fraction form
    55,144/76,099.08 = 29,993.68/x
  3. Step 3: Cross multiply
    55,144x = 76,099.08 × 29,993.68
  4. Step 4: Simplify right side
    55,144x = 2,282,491,453.81
  5. Step 5: Solve for x
    x = 2,282,491,453.81/55,144
  6. Step 6: Final answer
    x = 41,391.47

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Double scale
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1.5x scale

Why These Related Problems?

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