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Finding the Fourth Proportional to 50,480.67, 75,723.17 and 18,887.79

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Solution

The fourth proportional to 50,480.67, 75,723.17 and 18,887.79 is: 28,332.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,480.67 : 75,723.17 = 18,887.79 : x
  2. Step 2: Convert to fraction form
    50,480.67/75,723.17 = 18,887.79/x
  3. Step 3: Cross multiply
    50,480.67x = 75,723.17 × 18,887.79
  4. Step 4: Simplify right side
    50,480.67x = 1,430,243,238.66
  5. Step 5: Solve for x
    x = 1,430,243,238.66/50,480.67
  6. Step 6: Final answer
    x = 28,332.49

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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.