Home / 50,772.20-76,136.70-21,180.20

Finding the Fourth Proportional to 50,772.20, 76,136.70 and 21,180.20

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Solution

The fourth proportional to 50,772.20, 76,136.70 and 21,180.20 is: 31,761.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,772.20 : 76,136.70 = 21,180.20 : x
  2. Step 2: Convert to fraction form
    50,772.20/76,136.70 = 21,180.20/x
  3. Step 3: Cross multiply
    50,772.20x = 76,136.70 × 21,180.20
  4. Step 4: Simplify right side
    50,772.20x = 1,612,590,533.34
  5. Step 5: Solve for x
    x = 1,612,590,533.34/50,772.20
  6. Step 6: Final answer
    x = 31,761.29

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1.5x scale

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.