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Finding the Fourth Proportional to 79,201.43, 118,790.98 and 20,033.45

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Solution

The fourth proportional to 79,201.43, 118,790.98 and 20,033.45 is: 30,047.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,201.43 : 118,790.98 = 20,033.45 : x
  2. Step 2: Convert to fraction form
    79,201.43/118,790.98 = 20,033.45/x
  3. Step 3: Cross multiply
    79,201.43x = 118,790.98 × 20,033.45
  4. Step 4: Simplify right side
    79,201.43x = 2,379,793,158.28
  5. Step 5: Solve for x
    x = 2,379,793,158.28/79,201.43
  6. Step 6: Final answer
    x = 30,047.35

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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.