Home / 53,687.52-80,529.12-18,635.04

Finding the Fourth Proportional to 53,687.52, 80,529.12 and 18,635.04

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Solution

The fourth proportional to 53,687.52, 80,529.12 and 18,635.04 is: 27,951.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,687.52 : 80,529.12 = 18,635.04 : x
  2. Step 2: Convert to fraction form
    53,687.52/80,529.12 = 18,635.04/x
  3. Step 3: Cross multiply
    53,687.52x = 80,529.12 × 18,635.04
  4. Step 4: Simplify right side
    53,687.52x = 1,500,663,372.36
  5. Step 5: Solve for x
    x = 1,500,663,372.36/53,687.52
  6. Step 6: Final answer
    x = 27,951.81

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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.