Home / 50,781.60-76,179.48-21,192.66

Finding the Fourth Proportional to 50,781.60, 76,179.48 and 21,192.66

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Solution

The fourth proportional to 50,781.60, 76,179.48 and 21,192.66 is: 31,791.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,781.60 : 76,179.48 = 21,192.66 : x
  2. Step 2: Convert to fraction form
    50,781.60/76,179.48 = 21,192.66/x
  3. Step 3: Cross multiply
    50,781.60x = 76,179.48 × 21,192.66
  4. Step 4: Simplify right side
    50,781.60x = 1,614,445,818.62
  5. Step 5: Solve for x
    x = 1,614,445,818.62/50,781.60
  6. Step 6: Final answer
    x = 31,791.94

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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.