Finding the Fourth Proportional to 91,243.73, 136,833.90 and 50,778.99
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Solution
The fourth proportional to 91,243.73, 136,833.90 and 50,778.99 is: 76,150.84
Step by Step Solution
- Step 1: Write the proportion equation
91,243.73 : 136,833.90 = 50,778.99 : x - Step 2: Convert to fraction form
91,243.73/136,833.90 = 50,778.99/x - Step 3: Cross multiply
91,243.73x = 136,833.90 × 50,778.99 - Step 4: Simplify right side
91,243.73x = 6,948,287,177.62 - Step 5: Solve for x
x = 6,948,287,177.62/91,243.73 - Step 6: Final answer
x = 76,150.84
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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.