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Finding the Fourth Proportional to 53,797.50, 80,709.21 and 16,861.50

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Solution

The fourth proportional to 53,797.50, 80,709.21 and 16,861.50 is: 25,296.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,797.50 : 80,709.21 = 16,861.50 : x
  2. Step 2: Convert to fraction form
    53,797.50/80,709.21 = 16,861.50/x
  3. Step 3: Cross multiply
    53,797.50x = 80,709.21 × 16,861.50
  4. Step 4: Simplify right side
    53,797.50x = 1,360,878,344.42
  5. Step 5: Solve for x
    x = 1,360,878,344.42/53,797.50
  6. Step 6: Final answer
    x = 25,296.31

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.