Home / 72,864.20-109,266.15-25,469.30

Finding the Fourth Proportional to 72,864.20, 109,266.15 and 25,469.30

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Solution

The fourth proportional to 72,864.20, 109,266.15 and 25,469.30 is: 38,193.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,864.20 : 109,266.15 = 25,469.30 : x
  2. Step 2: Convert to fraction form
    72,864.20/109,266.15 = 25,469.30/x
  3. Step 3: Cross multiply
    72,864.20x = 109,266.15 × 25,469.30
  4. Step 4: Simplify right side
    72,864.20x = 2,782,932,354.20
  5. Step 5: Solve for x
    x = 2,782,932,354.20/72,864.20
  6. Step 6: Final answer
    x = 38,193.41

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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.