Home / 75,313.89-103,929.66-41,321.61

Finding the Fourth Proportional to 75,313.89, 103,929.66 and 41,321.61

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Solution

The fourth proportional to 75,313.89, 103,929.66 and 41,321.61 is: 57,021.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,313.89 : 103,929.66 = 41,321.61 : x
  2. Step 2: Convert to fraction form
    75,313.89/103,929.66 = 41,321.61/x
  3. Step 3: Cross multiply
    75,313.89x = 103,929.66 × 41,321.61
  4. Step 4: Simplify right side
    75,313.89x = 4,294,540,877.95
  5. Step 5: Solve for x
    x = 4,294,540,877.95/75,313.89
  6. Step 6: Final answer
    x = 57,021.90

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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.