Home / 90,900.41-136,359.92-34,787.70

Finding the Fourth Proportional to 90,900.41, 136,359.92 and 34,787.70

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Solution

The fourth proportional to 90,900.41, 136,359.92 and 34,787.70 is: 52,185.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,900.41 : 136,359.92 = 34,787.70 : x
  2. Step 2: Convert to fraction form
    90,900.41/136,359.92 = 34,787.70/x
  3. Step 3: Cross multiply
    90,900.41x = 136,359.92 × 34,787.70
  4. Step 4: Simplify right side
    90,900.41x = 4,743,647,815.05
  5. Step 5: Solve for x
    x = 4,743,647,815.05/90,900.41
  6. Step 6: Final answer
    x = 52,185.11

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.