Finding the Fourth Proportional to 73,947.60, 110,775.60 and 68,698.80
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Solution
The fourth proportional to 73,947.60, 110,775.60 and 68,698.80 is: 102,912.75
Step by Step Solution
- Step 1: Write the proportion equation
73,947.60 : 110,775.60 = 68,698.80 : x - Step 2: Convert to fraction form
73,947.60/110,775.60 = 68,698.80/x - Step 3: Cross multiply
73,947.60x = 110,775.60 × 68,698.80 - Step 4: Simplify right side
73,947.60x = 7,610,150,789.28 - Step 5: Solve for x
x = 7,610,150,789.28/73,947.60 - Step 6: Final answer
x = 102,912.75
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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.