Home / 71,133.03-106,698.33-21,213.27

Finding the Fourth Proportional to 71,133.03, 106,698.33 and 21,213.27

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Solution

The fourth proportional to 71,133.03, 106,698.33 and 21,213.27 is: 31,819.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,133.03 : 106,698.33 = 21,213.27 : x
  2. Step 2: Convert to fraction form
    71,133.03/106,698.33 = 21,213.27/x
  3. Step 3: Cross multiply
    71,133.03x = 106,698.33 × 21,213.27
  4. Step 4: Simplify right side
    71,133.03x = 2,263,420,482.84
  5. Step 5: Solve for x
    x = 2,263,420,482.84/71,133.03
  6. Step 6: Final answer
    x = 31,819.54

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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.