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Finding the Fourth Proportional to 69,080.20, 103,620.30 and 67,544.20

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Solution

The fourth proportional to 69,080.20, 103,620.30 and 67,544.20 is: 101,316.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,080.20 : 103,620.30 = 67,544.20 : x
  2. Step 2: Convert to fraction form
    69,080.20/103,620.30 = 67,544.20/x
  3. Step 3: Cross multiply
    69,080.20x = 103,620.30 × 67,544.20
  4. Step 4: Simplify right side
    69,080.20x = 6,998,950,267.26
  5. Step 5: Solve for x
    x = 6,998,950,267.26/69,080.20
  6. Step 6: Final answer
    x = 101,316.30

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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.