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Finding the Fourth Proportional to 53,563.96, 80,315.82 and 21,965.32

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Solution

The fourth proportional to 53,563.96, 80,315.82 and 21,965.32 is: 32,935.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,563.96 : 80,315.82 = 21,965.32 : x
  2. Step 2: Convert to fraction form
    53,563.96/80,315.82 = 21,965.32/x
  3. Step 3: Cross multiply
    53,563.96x = 80,315.82 × 21,965.32
  4. Step 4: Simplify right side
    53,563.96x = 1,764,162,687.36
  5. Step 5: Solve for x
    x = 1,764,162,687.36/53,563.96
  6. Step 6: Final answer
    x = 32,935.63

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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.