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Finding the Fourth Proportional to 79,735.64, 110,147.10 and 75,536.60

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Solution

The fourth proportional to 79,735.64, 110,147.10 and 75,536.60 is: 104,346.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,735.64 : 110,147.10 = 75,536.60 : x
  2. Step 2: Convert to fraction form
    79,735.64/110,147.10 = 75,536.60/x
  3. Step 3: Cross multiply
    79,735.64x = 110,147.10 × 75,536.60
  4. Step 4: Simplify right side
    79,735.64x = 8,320,137,433.86
  5. Step 5: Solve for x
    x = 8,320,137,433.86/79,735.64
  6. Step 6: Final answer
    x = 104,346.53

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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.