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Finding the Fourth Proportional to 80,551.69, 111,201.74 and 50,353.81

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Solution

The fourth proportional to 80,551.69, 111,201.74 and 50,353.81 is: 69,513.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,551.69 : 111,201.74 = 50,353.81 : x
  2. Step 2: Convert to fraction form
    80,551.69/111,201.74 = 50,353.81/x
  3. Step 3: Cross multiply
    80,551.69x = 111,201.74 × 50,353.81
  4. Step 4: Simplify right side
    80,551.69x = 5,599,431,287.63
  5. Step 5: Solve for x
    x = 5,599,431,287.63/80,551.69
  6. Step 6: Final answer
    x = 69,513.52

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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.