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Finding the Fourth Proportional to 68,941.64, 103,414.70 and 19,025.48

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Solution

The fourth proportional to 68,941.64, 103,414.70 and 19,025.48 is: 28,538.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,941.64 : 103,414.70 = 19,025.48 : x
  2. Step 2: Convert to fraction form
    68,941.64/103,414.70 = 19,025.48/x
  3. Step 3: Cross multiply
    68,941.64x = 103,414.70 × 19,025.48
  4. Step 4: Simplify right side
    68,941.64x = 1,967,514,306.56
  5. Step 5: Solve for x
    x = 1,967,514,306.56/68,941.64
  6. Step 6: Final answer
    x = 28,538.84

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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.