Home / 53,255.33-79,859.75-28,289.37

Finding the Fourth Proportional to 53,255.33, 79,859.75 and 28,289.37

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Solution

The fourth proportional to 53,255.33, 79,859.75 and 28,289.37 is: 42,421.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,255.33 : 79,859.75 = 28,289.37 : x
  2. Step 2: Convert to fraction form
    53,255.33/79,859.75 = 28,289.37/x
  3. Step 3: Cross multiply
    53,255.33x = 79,859.75 × 28,289.37
  4. Step 4: Simplify right side
    53,255.33x = 2,259,181,874.41
  5. Step 5: Solve for x
    x = 2,259,181,874.41/53,255.33
  6. Step 6: Final answer
    x = 42,421.71

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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.