Home / 331,043.25-496,566.09-81,725.25

Finding the Fourth Proportional to 331,043.25, 496,566.09 and 81,725.25

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Solution

The fourth proportional to 331,043.25, 496,566.09 and 81,725.25 is: 122,588.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    331,043.25 : 496,566.09 = 81,725.25 : x
  2. Step 2: Convert to fraction form
    331,043.25/496,566.09 = 81,725.25/x
  3. Step 3: Cross multiply
    331,043.25x = 496,566.09 × 81,725.25
  4. Step 4: Simplify right side
    331,043.25x = 40,581,987,846.77
  5. Step 5: Solve for x
    x = 40,581,987,846.77/331,043.25
  6. Step 6: Final answer
    x = 122,588.17

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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.