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Finding the Fourth Proportional to 43,732, 65,612.48 and 21,560.64

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Solution

The fourth proportional to 43,732, 65,612.48 and 21,560.64 is: 32,348.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,732 : 65,612.48 = 21,560.64 : x
  2. Step 2: Convert to fraction form
    43,732/65,612.48 = 21,560.64/x
  3. Step 3: Cross multiply
    43,732x = 65,612.48 × 21,560.64
  4. Step 4: Simplify right side
    43,732x = 1,414,647,060.79
  5. Step 5: Solve for x
    x = 1,414,647,060.79/43,732
  6. Step 6: Final answer
    x = 32,348.10

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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.