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Finding the Fourth Proportional to 66,797.07, 100,202.19 and 19,412.57

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Solution

The fourth proportional to 66,797.07, 100,202.19 and 19,412.57 is: 29,120.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,797.07 : 100,202.19 = 19,412.57 : x
  2. Step 2: Convert to fraction form
    66,797.07/100,202.19 = 19,412.57/x
  3. Step 3: Cross multiply
    66,797.07x = 100,202.19 × 19,412.57
  4. Step 4: Simplify right side
    66,797.07x = 1,945,182,205.24
  5. Step 5: Solve for x
    x = 1,945,182,205.24/66,797.07
  6. Step 6: Final answer
    x = 29,120.77

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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.