Home / 49,122.81-73,622.60-21,009.87

Finding the Fourth Proportional to 49,122.81, 73,622.60 and 21,009.87

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Solution

The fourth proportional to 49,122.81, 73,622.60 and 21,009.87 is: 31,488.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,122.81 : 73,622.60 = 21,009.87 : x
  2. Step 2: Convert to fraction form
    49,122.81/73,622.60 = 21,009.87/x
  3. Step 3: Cross multiply
    49,122.81x = 73,622.60 × 21,009.87
  4. Step 4: Simplify right side
    49,122.81x = 1,546,801,504.88
  5. Step 5: Solve for x
    x = 1,546,801,504.88/49,122.81
  6. Step 6: Final answer
    x = 31,488.45

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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.