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Finding the Fourth Proportional to 69,853.67, 104,781.47 and 19,933.75

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Solution

The fourth proportional to 69,853.67, 104,781.47 and 19,933.75 is: 29,900.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,853.67 : 104,781.47 = 19,933.75 : x
  2. Step 2: Convert to fraction form
    69,853.67/104,781.47 = 19,933.75/x
  3. Step 3: Cross multiply
    69,853.67x = 104,781.47 × 19,933.75
  4. Step 4: Simplify right side
    69,853.67x = 2,088,687,658.92
  5. Step 5: Solve for x
    x = 2,088,687,658.92/69,853.67
  6. Step 6: Final answer
    x = 29,900.90

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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.