Home / 53,418.20-80,132.74-18,353.30

Finding the Fourth Proportional to 53,418.20, 80,132.74 and 18,353.30

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Solution

The fourth proportional to 53,418.20, 80,132.74 and 18,353.30 is: 27,531.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,418.20 : 80,132.74 = 18,353.30 : x
  2. Step 2: Convert to fraction form
    53,418.20/80,132.74 = 18,353.30/x
  3. Step 3: Cross multiply
    53,418.20x = 80,132.74 × 18,353.30
  4. Step 4: Simplify right side
    53,418.20x = 1,470,699,770.50
  5. Step 5: Solve for x
    x = 1,470,699,770.50/53,418.20
  6. Step 6: Final answer
    x = 27,531.81

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1.5x scale

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.