Finding the Fourth Proportional to 74,160.61, 102,341.81 and 40,168.96
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Solution
The fourth proportional to 74,160.61, 102,341.81 and 40,168.96 is: 55,433.26
Step by Step Solution
- Step 1: Write the proportion equation
74,160.61 : 102,341.81 = 40,168.96 : x - Step 2: Convert to fraction form
74,160.61/102,341.81 = 40,168.96/x - Step 3: Cross multiply
74,160.61x = 102,341.81 × 40,168.96 - Step 4: Simplify right side
74,160.61x = 4,110,964,072.22 - Step 5: Solve for x
x = 4,110,964,072.22/74,160.61 - Step 6: Final answer
x = 55,433.26
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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.