Home / 53,408.16-80,118.72-18,355.68

Finding the Fourth Proportional to 53,408.16, 80,118.72 and 18,355.68

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Solution

The fourth proportional to 53,408.16, 80,118.72 and 18,355.68 is: 27,535.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,408.16 : 80,118.72 = 18,355.68 : x
  2. Step 2: Convert to fraction form
    53,408.16/80,118.72 = 18,355.68/x
  3. Step 3: Cross multiply
    53,408.16x = 80,118.72 × 18,355.68
  4. Step 4: Simplify right side
    53,408.16x = 1,470,633,586.33
  5. Step 5: Solve for x
    x = 1,470,633,586.33/53,408.16
  6. Step 6: Final answer
    x = 27,535.75

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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.