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Finding the Fourth Proportional to 79,573.16, 109,811 and 43,765.60

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Solution

The fourth proportional to 79,573.16, 109,811 and 43,765.60 is: 60,396.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,573.16 : 109,811 = 43,765.60 : x
  2. Step 2: Convert to fraction form
    79,573.16/109,811 = 43,765.60/x
  3. Step 3: Cross multiply
    79,573.16x = 109,811 × 43,765.60
  4. Step 4: Simplify right side
    79,573.16x = 4,805,944,301.60
  5. Step 5: Solve for x
    x = 4,805,944,301.60/79,573.16
  6. Step 6: Final answer
    x = 60,396.55

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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.