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Finding the Fourth Proportional to 80,392.31, 120,563.16 and 29,094.35

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Solution

The fourth proportional to 80,392.31, 120,563.16 and 29,094.35 is: 43,632.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,392.31 : 120,563.16 = 29,094.35 : x
  2. Step 2: Convert to fraction form
    80,392.31/120,563.16 = 29,094.35/x
  3. Step 3: Cross multiply
    80,392.31x = 120,563.16 × 29,094.35
  4. Step 4: Simplify right side
    80,392.31x = 3,507,706,171.33
  5. Step 5: Solve for x
    x = 3,507,706,171.33/80,392.31
  6. Step 6: Final answer
    x = 43,632.36

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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.