Home / 75,178.13-103,745.81-41,650.61

Finding the Fourth Proportional to 75,178.13, 103,745.81 and 41,650.61

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Solution

The fourth proportional to 75,178.13, 103,745.81 and 41,650.61 is: 57,477.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,178.13 : 103,745.81 = 41,650.61 : x
  2. Step 2: Convert to fraction form
    75,178.13/103,745.81 = 41,650.61/x
  3. Step 3: Cross multiply
    75,178.13x = 103,745.81 × 41,650.61
  4. Step 4: Simplify right side
    75,178.13x = 4,321,075,856.84
  5. Step 5: Solve for x
    x = 4,321,075,856.84/75,178.13
  6. Step 6: Final answer
    x = 57,477.83

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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.