Home / 53,752.91-80,640.68-18,212.40

Finding the Fourth Proportional to 53,752.91, 80,640.68 and 18,212.40

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Solution

The fourth proportional to 53,752.91, 80,640.68 and 18,212.40 is: 27,322.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,752.91 : 80,640.68 = 18,212.40 : x
  2. Step 2: Convert to fraction form
    53,752.91/80,640.68 = 18,212.40/x
  3. Step 3: Cross multiply
    53,752.91x = 80,640.68 × 18,212.40
  4. Step 4: Simplify right side
    53,752.91x = 1,468,660,229.37
  5. Step 5: Solve for x
    x = 1,468,660,229.37/53,752.91
  6. Step 6: Final answer
    x = 27,322.43

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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.