Finding the Fourth Proportional to 80,840.73, 121,100.36 and 63,228.09
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Solution
The fourth proportional to 80,840.73, 121,100.36 and 63,228.09 is: 94,716.42
Step by Step Solution
- Step 1: Write the proportion equation
80,840.73 : 121,100.36 = 63,228.09 : x - Step 2: Convert to fraction form
80,840.73/121,100.36 = 63,228.09/x - Step 3: Cross multiply
80,840.73x = 121,100.36 × 63,228.09 - Step 4: Simplify right side
80,840.73x = 7,656,944,144.97 - Step 5: Solve for x
x = 7,656,944,144.97/80,840.73 - Step 6: Final answer
x = 94,716.42
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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.