Home / 75,661.15-104,408.39-43,394.11

Finding the Fourth Proportional to 75,661.15, 104,408.39 and 43,394.11

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Solution

The fourth proportional to 75,661.15, 104,408.39 and 43,394.11 is: 59,881.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,661.15 : 104,408.39 = 43,394.11 : x
  2. Step 2: Convert to fraction form
    75,661.15/104,408.39 = 43,394.11/x
  3. Step 3: Cross multiply
    75,661.15x = 104,408.39 × 43,394.11
  4. Step 4: Simplify right side
    75,661.15x = 4,530,709,100.50
  5. Step 5: Solve for x
    x = 4,530,709,100.50/75,661.15
  6. Step 6: Final answer
    x = 59,881.58

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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.