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Finding the Fourth Proportional to 79,736.64, 110,148.48 and 75,537.60

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Solution

The fourth proportional to 79,736.64, 110,148.48 and 75,537.60 is: 104,347.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,736.64 : 110,148.48 = 75,537.60 : x
  2. Step 2: Convert to fraction form
    79,736.64/110,148.48 = 75,537.60/x
  3. Step 3: Cross multiply
    79,736.64x = 110,148.48 × 75,537.60
  4. Step 4: Simplify right side
    79,736.64x = 8,320,351,822.85
  5. Step 5: Solve for x
    x = 8,320,351,822.85/79,736.64
  6. Step 6: Final answer
    x = 104,347.91

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.