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Finding the Fourth Proportional to 34,109.60, 51,279.60 and 29,040.80

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Solution

The fourth proportional to 34,109.60, 51,279.60 and 29,040.80 is: 43,659.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,109.60 : 51,279.60 = 29,040.80 : x
  2. Step 2: Convert to fraction form
    34,109.60/51,279.60 = 29,040.80/x
  3. Step 3: Cross multiply
    34,109.60x = 51,279.60 × 29,040.80
  4. Step 4: Simplify right side
    34,109.60x = 1,489,200,607.68
  5. Step 5: Solve for x
    x = 1,489,200,607.68/34,109.60
  6. Step 6: Final answer
    x = 43,659.28

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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.