Home / 75,401.44-104,062.31-43,139.05

Finding the Fourth Proportional to 75,401.44, 104,062.31 and 43,139.05

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Solution

The fourth proportional to 75,401.44, 104,062.31 and 43,139.05 is: 59,536.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,401.44 : 104,062.31 = 43,139.05 : x
  2. Step 2: Convert to fraction form
    75,401.44/104,062.31 = 43,139.05/x
  3. Step 3: Cross multiply
    75,401.44x = 104,062.31 × 43,139.05
  4. Step 4: Simplify right side
    75,401.44x = 4,489,149,194.21
  5. Step 5: Solve for x
    x = 4,489,149,194.21/75,401.44
  6. Step 6: Final answer
    x = 59,536.65

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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.