Home / 53,467.68-80,212.32-18,408.72

Finding the Fourth Proportional to 53,467.68, 80,212.32 and 18,408.72

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Solution

The fourth proportional to 53,467.68, 80,212.32 and 18,408.72 is: 27,616.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,467.68 : 80,212.32 = 18,408.72 : x
  2. Step 2: Convert to fraction form
    53,467.68/80,212.32 = 18,408.72/x
  3. Step 3: Cross multiply
    53,467.68x = 80,212.32 × 18,408.72
  4. Step 4: Simplify right side
    53,467.68x = 1,476,606,139.43
  5. Step 5: Solve for x
    x = 1,476,606,139.43/53,467.68
  6. Step 6: Final answer
    x = 27,616.80

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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.