Home / 51,128.22-70,556.26-29,620.89

Finding the Fourth Proportional to 51,128.22, 70,556.26 and 29,620.89

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Solution

The fourth proportional to 51,128.22, 70,556.26 and 29,620.89 is: 40,876.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,128.22 : 70,556.26 = 29,620.89 : x
  2. Step 2: Convert to fraction form
    51,128.22/70,556.26 = 29,620.89/x
  3. Step 3: Cross multiply
    51,128.22x = 70,556.26 × 29,620.89
  4. Step 4: Simplify right side
    51,128.22x = 2,089,939,216.27
  5. Step 5: Solve for x
    x = 2,089,939,216.27/51,128.22
  6. Step 6: Final answer
    x = 40,876.43

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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.