Finding the Fourth Proportional to 85,717.67, 128,497.76 and 29,544.44
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Solution
The fourth proportional to 85,717.67, 128,497.76 and 29,544.44 is: 44,289.52
Step by Step Solution
- Step 1: Write the proportion equation
85,717.67 : 128,497.76 = 29,544.44 : x - Step 2: Convert to fraction form
85,717.67/128,497.76 = 29,544.44/x - Step 3: Cross multiply
85,717.67x = 128,497.76 × 29,544.44 - Step 4: Simplify right side
85,717.67x = 3,796,394,212.73 - Step 5: Solve for x
x = 3,796,394,212.73/85,717.67 - Step 6: Final answer
x = 44,289.52
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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.