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Finding the Fourth Proportional to 79,650.88, 109,917.81 and 43,840.17

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Solution

The fourth proportional to 79,650.88, 109,917.81 and 43,840.17 is: 60,499.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,650.88 : 109,917.81 = 43,840.17 : x
  2. Step 2: Convert to fraction form
    79,650.88/109,917.81 = 43,840.17/x
  3. Step 3: Cross multiply
    79,650.88x = 109,917.81 × 43,840.17
  4. Step 4: Simplify right side
    79,650.88x = 4,818,815,476.43
  5. Step 5: Solve for x
    x = 4,818,815,476.43/79,650.88
  6. Step 6: Final answer
    x = 60,499.21

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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.