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Finding the Fourth Proportional to 69,179.70, 103,759.23 and 19,254.59

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Solution

The fourth proportional to 69,179.70, 103,759.23 and 19,254.59 is: 28,879.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,179.70 : 103,759.23 = 19,254.59 : x
  2. Step 2: Convert to fraction form
    69,179.70/103,759.23 = 19,254.59/x
  3. Step 3: Cross multiply
    69,179.70x = 103,759.23 × 19,254.59
  4. Step 4: Simplify right side
    69,179.70x = 1,997,841,850.21
  5. Step 5: Solve for x
    x = 1,997,841,850.21/69,179.70
  6. Step 6: Final answer
    x = 28,879.02

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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.