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Finding the Fourth Proportional to 55,240.93, 82,861.41 and 13,687.93

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Solution

The fourth proportional to 55,240.93, 82,861.41 and 13,687.93 is: 20,531.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,240.93 : 82,861.41 = 13,687.93 : x
  2. Step 2: Convert to fraction form
    55,240.93/82,861.41 = 13,687.93/x
  3. Step 3: Cross multiply
    55,240.93x = 82,861.41 × 13,687.93
  4. Step 4: Simplify right side
    55,240.93x = 1,134,201,179.78
  5. Step 5: Solve for x
    x = 1,134,201,179.78/55,240.93
  6. Step 6: Final answer
    x = 20,531.90

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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.