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Finding the Fourth Proportional to 99,958.44, 137,941.02 and 54,635.88

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Solution

The fourth proportional to 99,958.44, 137,941.02 and 54,635.88 is: 75,396.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,958.44 : 137,941.02 = 54,635.88 : x
  2. Step 2: Convert to fraction form
    99,958.44/137,941.02 = 54,635.88/x
  3. Step 3: Cross multiply
    99,958.44x = 137,941.02 × 54,635.88
  4. Step 4: Simplify right side
    99,958.44x = 7,536,529,015.80
  5. Step 5: Solve for x
    x = 7,536,529,015.80/99,958.44
  6. Step 6: Final answer
    x = 75,396.62

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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.