Home / 79,805.37-119,725.38-39,845.85

Finding the Fourth Proportional to 79,805.37, 119,725.38 and 39,845.85

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Solution

The fourth proportional to 79,805.37, 119,725.38 and 39,845.85 is: 59,777.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,805.37 : 119,725.38 = 39,845.85 : x
  2. Step 2: Convert to fraction form
    79,805.37/119,725.38 = 39,845.85/x
  3. Step 3: Cross multiply
    79,805.37x = 119,725.38 × 39,845.85
  4. Step 4: Simplify right side
    79,805.37x = 4,770,559,532.67
  5. Step 5: Solve for x
    x = 4,770,559,532.67/79,805.37
  6. Step 6: Final answer
    x = 59,777.43

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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.