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Finding the Fourth Proportional to 75,163.84, 112,745.68 and 30,790.67

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Solution

The fourth proportional to 75,163.84, 112,745.68 and 30,790.67 is: 46,185.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,163.84 : 112,745.68 = 30,790.67 : x
  2. Step 2: Convert to fraction form
    75,163.84/112,745.68 = 30,790.67/x
  3. Step 3: Cross multiply
    75,163.84x = 112,745.68 × 30,790.67
  4. Step 4: Simplify right side
    75,163.84x = 3,471,515,026.81
  5. Step 5: Solve for x
    x = 3,471,515,026.81/75,163.84
  6. Step 6: Final answer
    x = 46,185.97

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1.5x scale

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.