Home / 51,118.56-76,645.44-21,556.80

Finding the Fourth Proportional to 51,118.56, 76,645.44 and 21,556.80

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Solution

The fourth proportional to 51,118.56, 76,645.44 and 21,556.80 is: 32,321.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,118.56 : 76,645.44 = 21,556.80 : x
  2. Step 2: Convert to fraction form
    51,118.56/76,645.44 = 21,556.80/x
  3. Step 3: Cross multiply
    51,118.56x = 76,645.44 × 21,556.80
  4. Step 4: Simplify right side
    51,118.56x = 1,652,230,420.99
  5. Step 5: Solve for x
    x = 1,652,230,420.99/51,118.56
  6. Step 6: Final answer
    x = 32,321.54

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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.