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Finding the Fourth Proportional to 79,185.68, 118,767.36 and 20,017.70

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Solution

The fourth proportional to 79,185.68, 118,767.36 and 20,017.70 is: 30,023.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,185.68 : 118,767.36 = 20,017.70 : x
  2. Step 2: Convert to fraction form
    79,185.68/118,767.36 = 20,017.70/x
  3. Step 3: Cross multiply
    79,185.68x = 118,767.36 × 20,017.70
  4. Step 4: Simplify right side
    79,185.68x = 2,377,449,382.27
  5. Step 5: Solve for x
    x = 2,377,449,382.27/79,185.68
  6. Step 6: Final answer
    x = 30,023.73

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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.