Finding the Fourth Proportional to 74,367.51, 102,626.42 and 40,376.31
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Solution
The fourth proportional to 74,367.51, 102,626.42 and 40,376.31 is: 55,718.90
Step by Step Solution
- Step 1: Write the proportion equation
74,367.51 : 102,626.42 = 40,376.31 : x - Step 2: Convert to fraction form
74,367.51/102,626.42 = 40,376.31/x - Step 3: Cross multiply
74,367.51x = 102,626.42 × 40,376.31 - Step 4: Simplify right side
74,367.51x = 4,143,676,148.11 - Step 5: Solve for x
x = 4,143,676,148.11/74,367.51 - Step 6: Final answer
x = 55,718.90
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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.