Home / 49,122.69-73,622.41-21,009.75

Finding the Fourth Proportional to 49,122.69, 73,622.41 and 21,009.75

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Solution

The fourth proportional to 49,122.69, 73,622.41 and 21,009.75 is: 31,488.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,122.69 : 73,622.41 = 21,009.75 : x
  2. Step 2: Convert to fraction form
    49,122.69/73,622.41 = 21,009.75/x
  3. Step 3: Cross multiply
    49,122.69x = 73,622.41 × 21,009.75
  4. Step 4: Simplify right side
    49,122.69x = 1,546,788,428.50
  5. Step 5: Solve for x
    x = 1,546,788,428.50/49,122.69
  6. Step 6: Final answer
    x = 31,488.27

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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.