Home / 49,122.38-73,621.91-21,009.36

Finding the Fourth Proportional to 49,122.38, 73,621.91 and 21,009.36

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Solution

The fourth proportional to 49,122.38, 73,621.91 and 21,009.36 is: 31,487.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,122.38 : 73,621.91 = 21,009.36 : x
  2. Step 2: Convert to fraction form
    49,122.38/73,621.91 = 21,009.36/x
  3. Step 3: Cross multiply
    49,122.38x = 73,621.91 × 21,009.36
  4. Step 4: Simplify right side
    49,122.38x = 1,546,749,106.03
  5. Step 5: Solve for x
    x = 1,546,749,106.03/49,122.38
  6. Step 6: Final answer
    x = 31,487.67

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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.