Home / 79,280.98-118,902.60-31,896.25

Finding the Fourth Proportional to 79,280.98, 118,902.60 and 31,896.25

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Solution

The fourth proportional to 79,280.98, 118,902.60 and 31,896.25 is: 47,836.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,280.98 : 118,902.60 = 31,896.25 : x
  2. Step 2: Convert to fraction form
    79,280.98/118,902.60 = 31,896.25/x
  3. Step 3: Cross multiply
    79,280.98x = 118,902.60 × 31,896.25
  4. Step 4: Simplify right side
    79,280.98x = 3,792,546,757.99
  5. Step 5: Solve for x
    x = 3,792,546,757.99/79,280.98
  6. Step 6: Final answer
    x = 47,836.78

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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.