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Finding the Fourth Proportional to 50,661.70, 75,992.58 and 13,221.68

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Solution

The fourth proportional to 50,661.70, 75,992.58 and 13,221.68 is: 19,832.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,661.70 : 75,992.58 = 13,221.68 : x
  2. Step 2: Convert to fraction form
    50,661.70/75,992.58 = 13,221.68/x
  3. Step 3: Cross multiply
    50,661.70x = 75,992.58 × 13,221.68
  4. Step 4: Simplify right side
    50,661.70x = 1,004,749,195.17
  5. Step 5: Solve for x
    x = 1,004,749,195.17/50,661.70
  6. Step 6: Final answer
    x = 19,832.52

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1.5x scale

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.