Home / 99,811.44-137,733.93-54,480.42

Finding the Fourth Proportional to 99,811.44, 137,733.93 and 54,480.42

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Solution

The fourth proportional to 99,811.44, 137,733.93 and 54,480.42 is: 75,179.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,811.44 : 137,733.93 = 54,480.42 : x
  2. Step 2: Convert to fraction form
    99,811.44/137,733.93 = 54,480.42/x
  3. Step 3: Cross multiply
    99,811.44x = 137,733.93 × 54,480.42
  4. Step 4: Simplify right side
    99,811.44x = 7,503,802,354.65
  5. Step 5: Solve for x
    x = 7,503,802,354.65/99,811.44
  6. Step 6: Final answer
    x = 75,179.78

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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.