Finding the Fourth Proportional to 74,523.93, 102,841.99 and 40,531.68
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Solution
The fourth proportional to 74,523.93, 102,841.99 and 40,531.68 is: 55,933.16
Step by Step Solution
- Step 1: Write the proportion equation
74,523.93 : 102,841.99 = 40,531.68 : x - Step 2: Convert to fraction form
74,523.93/102,841.99 = 40,531.68/x - Step 3: Cross multiply
74,523.93x = 102,841.99 × 40,531.68 - Step 4: Simplify right side
74,523.93x = 4,168,358,629.24 - Step 5: Solve for x
x = 4,168,358,629.24/74,523.93 - Step 6: Final answer
x = 55,933.16
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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.