Home / 50,821.21-70,138.46-29,311.79

Finding the Fourth Proportional to 50,821.21, 70,138.46 and 29,311.79

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Solution

The fourth proportional to 50,821.21, 70,138.46 and 29,311.79 is: 40,453.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,821.21 : 70,138.46 = 29,311.79 : x
  2. Step 2: Convert to fraction form
    50,821.21/70,138.46 = 29,311.79/x
  3. Step 3: Cross multiply
    50,821.21x = 70,138.46 × 29,311.79
  4. Step 4: Simplify right side
    50,821.21x = 2,055,883,810.44
  5. Step 5: Solve for x
    x = 2,055,883,810.44/50,821.21
  6. Step 6: Final answer
    x = 40,453.26

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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.