Home / 68,862.17-103,276.24-18,939.85

Finding the Fourth Proportional to 68,862.17, 103,276.24 and 18,939.85

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Solution

The fourth proportional to 68,862.17, 103,276.24 and 18,939.85 is: 28,405.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,862.17 : 103,276.24 = 18,939.85 : x
  2. Step 2: Convert to fraction form
    68,862.17/103,276.24 = 18,939.85/x
  3. Step 3: Cross multiply
    68,862.17x = 103,276.24 × 18,939.85
  4. Step 4: Simplify right side
    68,862.17x = 1,956,036,188.62
  5. Step 5: Solve for x
    x = 1,956,036,188.62/68,862.17
  6. Step 6: Final answer
    x = 28,405.09

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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.