Finding the Fourth Proportional to 85,083.75, 117,415.58 and 47,357.19
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Solution
The fourth proportional to 85,083.75, 117,415.58 and 47,357.19 is: 65,352.92
Step by Step Solution
- Step 1: Write the proportion equation
85,083.75 : 117,415.58 = 47,357.19 : x - Step 2: Convert to fraction form
85,083.75/117,415.58 = 47,357.19/x - Step 3: Cross multiply
85,083.75x = 117,415.58 × 47,357.19 - Step 4: Simplify right side
85,083.75x = 5,560,471,694.23 - Step 5: Solve for x
x = 5,560,471,694.23/85,083.75 - Step 6: Final answer
x = 65,352.92
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.