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Finding the Fourth Proportional to 69,525, 103,393.08 and 67,310.73

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Solution

The fourth proportional to 69,525, 103,393.08 and 67,310.73 is: 100,100.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,525 : 103,393.08 = 67,310.73 : x
  2. Step 2: Convert to fraction form
    69,525/103,393.08 = 67,310.73/x
  3. Step 3: Cross multiply
    69,525x = 103,393.08 × 67,310.73
  4. Step 4: Simplify right side
    69,525x = 6,959,463,691.75
  5. Step 5: Solve for x
    x = 6,959,463,691.75/69,525
  6. Step 6: Final answer
    x = 100,100.16

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.