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Finding the Fourth Proportional to 68,234.57, 94,163.90 and 39,559.80

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Solution

The fourth proportional to 68,234.57, 94,163.90 and 39,559.80 is: 54,592.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,234.57 : 94,163.90 = 39,559.80 : x
  2. Step 2: Convert to fraction form
    68,234.57/94,163.90 = 39,559.80/x
  3. Step 3: Cross multiply
    68,234.57x = 94,163.90 × 39,559.80
  4. Step 4: Simplify right side
    68,234.57x = 3,725,105,051.22
  5. Step 5: Solve for x
    x = 3,725,105,051.22/68,234.57
  6. Step 6: Final answer
    x = 54,592.64

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.