Finding the Fourth Proportional to 91,857.24, 137,670.84 and 39,205.08
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Solution
The fourth proportional to 91,857.24, 137,670.84 and 39,205.08 is: 58,758.53
Step by Step Solution
- Step 1: Write the proportion equation
91,857.24 : 137,670.84 = 39,205.08 : x - Step 2: Convert to fraction form
91,857.24/137,670.84 = 39,205.08/x - Step 3: Cross multiply
91,857.24x = 137,670.84 × 39,205.08 - Step 4: Simplify right side
91,857.24x = 5,397,396,295.87 - Step 5: Solve for x
x = 5,397,396,295.87/91,857.24 - Step 6: Final answer
x = 58,758.53
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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.