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Finding the Fourth Proportional to 71,999.43, 108,047.36 and 29,879.55

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Solution

The fourth proportional to 71,999.43, 108,047.36 and 29,879.55 is: 44,839.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,999.43 : 108,047.36 = 29,879.55 : x
  2. Step 2: Convert to fraction form
    71,999.43/108,047.36 = 29,879.55/x
  3. Step 3: Cross multiply
    71,999.43x = 108,047.36 × 29,879.55
  4. Step 4: Simplify right side
    71,999.43x = 3,228,406,495.49
  5. Step 5: Solve for x
    x = 3,228,406,495.49/71,999.43
  6. Step 6: Final answer
    x = 44,839.33

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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.