Home / 53,481.20-80,279.40-30,153.20

Finding the Fourth Proportional to 53,481.20, 80,279.40 and 30,153.20

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Solution

The fourth proportional to 53,481.20, 80,279.40 and 30,153.20 is: 45,262.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,481.20 : 80,279.40 = 30,153.20 : x
  2. Step 2: Convert to fraction form
    53,481.20/80,279.40 = 30,153.20/x
  3. Step 3: Cross multiply
    53,481.20x = 80,279.40 × 30,153.20
  4. Step 4: Simplify right side
    53,481.20x = 2,420,680,804.08
  5. Step 5: Solve for x
    x = 2,420,680,804.08/53,481.20
  6. Step 6: Final answer
    x = 45,262.28

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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.