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Finding the Fourth Proportional to 76,993.26, 106,220.88 and 45,150.54

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Solution

The fourth proportional to 76,993.26, 106,220.88 and 45,150.54 is: 62,290.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,993.26 : 106,220.88 = 45,150.54 : x
  2. Step 2: Convert to fraction form
    76,993.26/106,220.88 = 45,150.54/x
  3. Step 3: Cross multiply
    76,993.26x = 106,220.88 × 45,150.54
  4. Step 4: Simplify right side
    76,993.26x = 4,795,930,091.28
  5. Step 5: Solve for x
    x = 4,795,930,091.28/76,993.26
  6. Step 6: Final answer
    x = 62,290.26

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1.5x scale

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.