Home / 99,848.57-137,785.89-54,517.81

Finding the Fourth Proportional to 99,848.57, 137,785.89 and 54,517.81

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Solution

The fourth proportional to 99,848.57, 137,785.89 and 54,517.81 is: 75,231.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,848.57 : 137,785.89 = 54,517.81 : x
  2. Step 2: Convert to fraction form
    99,848.57/137,785.89 = 54,517.81/x
  3. Step 3: Cross multiply
    99,848.57x = 137,785.89 × 54,517.81
  4. Step 4: Simplify right side
    99,848.57x = 7,511,784,971.70
  5. Step 5: Solve for x
    x = 7,511,784,971.70/99,848.57
  6. Step 6: Final answer
    x = 75,231.77

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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.