Home / 99,619.62-137,474.20-54,297.60

Finding the Fourth Proportional to 99,619.62, 137,474.20 and 54,297.60

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Solution

The fourth proportional to 99,619.62, 137,474.20 and 54,297.60 is: 74,930.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,619.62 : 137,474.20 = 54,297.60 : x
  2. Step 2: Convert to fraction form
    99,619.62/137,474.20 = 54,297.60/x
  3. Step 3: Cross multiply
    99,619.62x = 137,474.20 × 54,297.60
  4. Step 4: Simplify right side
    99,619.62x = 7,464,518,850.43
  5. Step 5: Solve for x
    x = 7,464,518,850.43/99,619.62
  6. Step 6: Final answer
    x = 74,930.21

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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.