Home / 53,408.45-80,112.94-13,965.65

Finding the Fourth Proportional to 53,408.45, 80,112.94 and 13,965.65

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Solution

The fourth proportional to 53,408.45, 80,112.94 and 13,965.65 is: 20,948.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,408.45 : 80,112.94 = 13,965.65 : x
  2. Step 2: Convert to fraction form
    53,408.45/80,112.94 = 13,965.65/x
  3. Step 3: Cross multiply
    53,408.45x = 80,112.94 × 13,965.65
  4. Step 4: Simplify right side
    53,408.45x = 1,118,828,879.95
  5. Step 5: Solve for x
    x = 1,118,828,879.95/53,408.45
  6. Step 6: Final answer
    x = 20,948.54

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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.