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Finding the Fourth Proportional to 69,141.40, 103,481.70 and 63,611.80

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Solution

The fourth proportional to 69,141.40, 103,481.70 and 63,611.80 is: 95,205.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,141.40 : 103,481.70 = 63,611.80 : x
  2. Step 2: Convert to fraction form
    69,141.40/103,481.70 = 63,611.80/x
  3. Step 3: Cross multiply
    69,141.40x = 103,481.70 × 63,611.80
  4. Step 4: Simplify right side
    69,141.40x = 6,582,657,204.06
  5. Step 5: Solve for x
    x = 6,582,657,204.06/69,141.40
  6. Step 6: Final answer
    x = 95,205.73

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1.5x scale

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.