Home / 68,557.20-102,797.58-21,158.85

Finding the Fourth Proportional to 68,557.20, 102,797.58 and 21,158.85

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Solution

The fourth proportional to 68,557.20, 102,797.58 and 21,158.85 is: 31,726.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,557.20 : 102,797.58 = 21,158.85 : x
  2. Step 2: Convert to fraction form
    68,557.20/102,797.58 = 21,158.85/x
  3. Step 3: Cross multiply
    68,557.20x = 102,797.58 × 21,158.85
  4. Step 4: Simplify right side
    68,557.20x = 2,175,078,575.58
  5. Step 5: Solve for x
    x = 2,175,078,575.58/68,557.20
  6. Step 6: Final answer
    x = 31,726.48

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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.