Finding the Fourth Proportional to 74,474.32, 102,771.96 and 40,940.08
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Solution
The fourth proportional to 74,474.32, 102,771.96 and 40,940.08 is: 56,495.88
Step by Step Solution
- Step 1: Write the proportion equation
74,474.32 : 102,771.96 = 40,940.08 : x - Step 2: Convert to fraction form
74,474.32/102,771.96 = 40,940.08/x - Step 3: Cross multiply
74,474.32x = 102,771.96 × 40,940.08 - Step 4: Simplify right side
74,474.32x = 4,207,492,264.16 - Step 5: Solve for x
x = 4,207,492,264.16/74,474.32 - Step 6: Final answer
x = 56,495.88
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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.