Home / 80,054.45-120,077.35-40,610.54

Finding the Fourth Proportional to 80,054.45, 120,077.35 and 40,610.54

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Solution

The fourth proportional to 80,054.45, 120,077.35 and 40,610.54 is: 60,913.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,054.45 : 120,077.35 = 40,610.54 : x
  2. Step 2: Convert to fraction form
    80,054.45/120,077.35 = 40,610.54/x
  3. Step 3: Cross multiply
    80,054.45x = 120,077.35 × 40,610.54
  4. Step 4: Simplify right side
    80,054.45x = 4,876,405,323.36
  5. Step 5: Solve for x
    x = 4,876,405,323.36/80,054.45
  6. Step 6: Final answer
    x = 60,913.61

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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.