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Finding the Fourth Proportional to 91,777.86, 126,649.17 and 54,044.82

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Solution

The fourth proportional to 91,777.86, 126,649.17 and 54,044.82 is: 74,579.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,777.86 : 126,649.17 = 54,044.82 : x
  2. Step 2: Convert to fraction form
    91,777.86/126,649.17 = 54,044.82/x
  3. Step 3: Cross multiply
    91,777.86x = 126,649.17 × 54,044.82
  4. Step 4: Simplify right side
    91,777.86x = 6,844,731,595.80
  5. Step 5: Solve for x
    x = 6,844,731,595.80/91,777.86
  6. Step 6: Final answer
    x = 74,579.33

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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.