Home / 80,039.05-110,455.48-43,742.75

Finding the Fourth Proportional to 80,039.05, 110,455.48 and 43,742.75

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Solution

The fourth proportional to 80,039.05, 110,455.48 and 43,742.75 is: 60,365.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,039.05 : 110,455.48 = 43,742.75 : x
  2. Step 2: Convert to fraction form
    80,039.05/110,455.48 = 43,742.75/x
  3. Step 3: Cross multiply
    80,039.05x = 110,455.48 × 43,742.75
  4. Step 4: Simplify right side
    80,039.05x = 4,831,625,676.78
  5. Step 5: Solve for x
    x = 4,831,625,676.78/80,039.05
  6. Step 6: Final answer
    x = 60,365.85

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.