Home / 89,789.85-123,907.70-49,502.67

Finding the Fourth Proportional to 89,789.85, 123,907.70 and 49,502.67

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Solution

The fourth proportional to 89,789.85, 123,907.70 and 49,502.67 is: 68,312.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,789.85 : 123,907.70 = 49,502.67 : x
  2. Step 2: Convert to fraction form
    89,789.85/123,907.70 = 49,502.67/x
  3. Step 3: Cross multiply
    89,789.85x = 123,907.70 × 49,502.67
  4. Step 4: Simplify right side
    89,789.85x = 6,133,761,736.05
  5. Step 5: Solve for x
    x = 6,133,761,736.05/89,789.85
  6. Step 6: Final answer
    x = 68,312.42

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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.