Home / 321,021.55-481,418.70-93,269.80

Finding the Fourth Proportional to 321,021.55, 481,418.70 and 93,269.80

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Solution

The fourth proportional to 321,021.55, 481,418.70 and 93,269.80 is: 139,871.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    321,021.55 : 481,418.70 = 93,269.80 : x
  2. Step 2: Convert to fraction form
    321,021.55/481,418.70 = 93,269.80/x
  3. Step 3: Cross multiply
    321,021.55x = 481,418.70 × 93,269.80
  4. Step 4: Simplify right side
    321,021.55x = 44,901,825,865.26
  5. Step 5: Solve for x
    x = 44,901,825,865.26/321,021.55
  6. Step 6: Final answer
    x = 139,871.69

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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.