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Finding the Fourth Proportional to 65,760.32, 98,650.04 and 20,766.44

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Solution

The fourth proportional to 65,760.32, 98,650.04 and 20,766.44 is: 31,152.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,760.32 : 98,650.04 = 20,766.44 : x
  2. Step 2: Convert to fraction form
    65,760.32/98,650.04 = 20,766.44/x
  3. Step 3: Cross multiply
    65,760.32x = 98,650.04 × 20,766.44
  4. Step 4: Simplify right side
    65,760.32x = 2,048,610,279.45
  5. Step 5: Solve for x
    x = 2,048,610,279.45/65,760.32
  6. Step 6: Final answer
    x = 31,152.68

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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.