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Finding the Fourth Proportional to 79,181.26, 118,771.88 and 20,016.93

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Solution

The fourth proportional to 79,181.26, 118,771.88 and 20,016.93 is: 30,025.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,181.26 : 118,771.88 = 20,016.93 : x
  2. Step 2: Convert to fraction form
    79,181.26/118,771.88 = 20,016.93/x
  3. Step 3: Cross multiply
    79,181.26x = 118,771.88 × 20,016.93
  4. Step 4: Simplify right side
    79,181.26x = 2,377,447,814.07
  5. Step 5: Solve for x
    x = 2,377,447,814.07/79,181.26
  6. Step 6: Final answer
    x = 30,025.39

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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.