Home / 99,815.44-137,739.42-54,484.42

Finding the Fourth Proportional to 99,815.44, 137,739.42 and 54,484.42

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Solution

The fourth proportional to 99,815.44, 137,739.42 and 54,484.42 is: 75,185.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,815.44 : 137,739.42 = 54,484.42 : x
  2. Step 2: Convert to fraction form
    99,815.44/137,739.42 = 54,484.42/x
  3. Step 3: Cross multiply
    99,815.44x = 137,739.42 × 54,484.42
  4. Step 4: Simplify right side
    99,815.44x = 7,504,652,409.84
  5. Step 5: Solve for x
    x = 7,504,652,409.84/99,815.44
  6. Step 6: Final answer
    x = 75,185.29

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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.