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Finding the Fourth Proportional to 68,682.40, 102,974.40 and 26,526.40

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Solution

The fourth proportional to 68,682.40, 102,974.40 and 26,526.40 is: 39,770.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,682.40 : 102,974.40 = 26,526.40 : x
  2. Step 2: Convert to fraction form
    68,682.40/102,974.40 = 26,526.40/x
  3. Step 3: Cross multiply
    68,682.40x = 102,974.40 × 26,526.40
  4. Step 4: Simplify right side
    68,682.40x = 2,731,540,124.16
  5. Step 5: Solve for x
    x = 2,731,540,124.16/68,682.40
  6. Step 6: Final answer
    x = 39,770.60

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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.