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Finding the Fourth Proportional to 80,566.64, 111,189.48 and 48,743.36

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Solution

The fourth proportional to 80,566.64, 111,189.48 and 48,743.36 is: 67,270.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,566.64 : 111,189.48 = 48,743.36 : x
  2. Step 2: Convert to fraction form
    80,566.64/111,189.48 = 48,743.36/x
  3. Step 3: Cross multiply
    80,566.64x = 111,189.48 × 48,743.36
  4. Step 4: Simplify right side
    80,566.64x = 5,419,748,851.85
  5. Step 5: Solve for x
    x = 5,419,748,851.85/80,566.64
  6. Step 6: Final answer
    x = 67,270.38

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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.