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Finding the Fourth Proportional to 69,451.08, 104,179.50 and 20,203.08

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Solution

The fourth proportional to 69,451.08, 104,179.50 and 20,203.08 is: 30,305.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,451.08 : 104,179.50 = 20,203.08 : x
  2. Step 2: Convert to fraction form
    69,451.08/104,179.50 = 20,203.08/x
  3. Step 3: Cross multiply
    69,451.08x = 104,179.50 × 20,203.08
  4. Step 4: Simplify right side
    69,451.08x = 2,104,746,772.86
  5. Step 5: Solve for x
    x = 2,104,746,772.86/69,451.08
  6. Step 6: Final answer
    x = 30,305.46

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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.