Home / 89,849.21-123,991.20-49,564.67

Finding the Fourth Proportional to 89,849.21, 123,991.20 and 49,564.67

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Solution

The fourth proportional to 89,849.21, 123,991.20 and 49,564.67 is: 68,398.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,849.21 : 123,991.20 = 49,564.67 : x
  2. Step 2: Convert to fraction form
    89,849.21/123,991.20 = 49,564.67/x
  3. Step 3: Cross multiply
    89,849.21x = 123,991.20 × 49,564.67
  4. Step 4: Simplify right side
    89,849.21x = 6,145,582,290.95
  5. Step 5: Solve for x
    x = 6,145,582,290.95/89,849.21
  6. Step 6: Final answer
    x = 68,398.85

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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.