Home / 68,490.44-102,748.62-38,941.64

Finding the Fourth Proportional to 68,490.44, 102,748.62 and 38,941.64

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Solution

The fourth proportional to 68,490.44, 102,748.62 and 38,941.64 is: 58,419.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,490.44 : 102,748.62 = 38,941.64 : x
  2. Step 2: Convert to fraction form
    68,490.44/102,748.62 = 38,941.64/x
  3. Step 3: Cross multiply
    68,490.44x = 102,748.62 × 38,941.64
  4. Step 4: Simplify right side
    68,490.44x = 4,001,199,770.54
  5. Step 5: Solve for x
    x = 4,001,199,770.54/68,490.44
  6. Step 6: Final answer
    x = 58,419.83

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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.