Home / 109,072.62-163,671.30-49,907.79

Finding the Fourth Proportional to 109,072.62, 163,671.30 and 49,907.79

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Solution

The fourth proportional to 109,072.62, 163,671.30 and 49,907.79 is: 74,890.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,072.62 : 163,671.30 = 49,907.79 : x
  2. Step 2: Convert to fraction form
    109,072.62/163,671.30 = 49,907.79/x
  3. Step 3: Cross multiply
    109,072.62x = 163,671.30 × 49,907.79
  4. Step 4: Simplify right side
    109,072.62x = 8,168,472,869.43
  5. Step 5: Solve for x
    x = 8,168,472,869.43/109,072.62
  6. Step 6: Final answer
    x = 74,890.22

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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.