Home / 72,675.10-108,976.20-33,187.60

Finding the Fourth Proportional to 72,675.10, 108,976.20 and 33,187.60

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Solution

The fourth proportional to 72,675.10, 108,976.20 and 33,187.60 is: 49,764.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,675.10 : 108,976.20 = 33,187.60 : x
  2. Step 2: Convert to fraction form
    72,675.10/108,976.20 = 33,187.60/x
  3. Step 3: Cross multiply
    72,675.10x = 108,976.20 × 33,187.60
  4. Step 4: Simplify right side
    72,675.10x = 3,616,658,535.12
  5. Step 5: Solve for x
    x = 3,616,658,535.12/72,675.10
  6. Step 6: Final answer
    x = 49,764.75

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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.