Finding the Fourth Proportional to 91,839.08, 137,629.02 and 39,230.12
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Solution
The fourth proportional to 91,839.08, 137,629.02 and 39,230.12 is: 58,789.82
Step by Step Solution
- Step 1: Write the proportion equation
91,839.08 : 137,629.02 = 39,230.12 : x - Step 2: Convert to fraction form
91,839.08/137,629.02 = 39,230.12/x - Step 3: Cross multiply
91,839.08x = 137,629.02 × 39,230.12 - Step 4: Simplify right side
91,839.08x = 5,399,202,970.08 - Step 5: Solve for x
x = 5,399,202,970.08/91,839.08 - Step 6: Final answer
x = 58,789.82
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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.