Home / 50,729.84-76,108.80-21,161.60

Finding the Fourth Proportional to 50,729.84, 76,108.80 and 21,161.60

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Solution

The fourth proportional to 50,729.84, 76,108.80 and 21,161.60 is: 31,748.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,729.84 : 76,108.80 = 21,161.60 : x
  2. Step 2: Convert to fraction form
    50,729.84/76,108.80 = 21,161.60/x
  3. Step 3: Cross multiply
    50,729.84x = 76,108.80 × 21,161.60
  4. Step 4: Simplify right side
    50,729.84x = 1,610,583,982.08
  5. Step 5: Solve for x
    x = 1,610,583,982.08/50,729.84
  6. Step 6: Final answer
    x = 31,748.26

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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.