Finding the Fourth Proportional to 71,696.74, 107,559.47 and 40,151.65
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Solution
The fourth proportional to 71,696.74, 107,559.47 and 40,151.65 is: 60,235.52
Step by Step Solution
- Step 1: Write the proportion equation
71,696.74 : 107,559.47 = 40,151.65 : x - Step 2: Convert to fraction form
71,696.74/107,559.47 = 40,151.65/x - Step 3: Cross multiply
71,696.74x = 107,559.47 × 40,151.65 - Step 4: Simplify right side
71,696.74x = 4,318,690,193.63 - Step 5: Solve for x
x = 4,318,690,193.63/71,696.74 - Step 6: Final answer
x = 60,235.52
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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.