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Finding the Fourth Proportional to 69,470.78, 104,205.25 and 16,880.11

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Solution

The fourth proportional to 69,470.78, 104,205.25 and 16,880.11 is: 25,319.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,470.78 : 104,205.25 = 16,880.11 : x
  2. Step 2: Convert to fraction form
    69,470.78/104,205.25 = 16,880.11/x
  3. Step 3: Cross multiply
    69,470.78x = 104,205.25 × 16,880.11
  4. Step 4: Simplify right side
    69,470.78x = 1,758,995,843.16
  5. Step 5: Solve for x
    x = 1,758,995,843.16/69,470.78
  6. Step 6: Final answer
    x = 25,319.94

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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.