Finding the Fourth Proportional to 74,186.28, 102,376.44 and 40,194.12
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Solution
The fourth proportional to 74,186.28, 102,376.44 and 40,194.12 is: 55,467.55
Step by Step Solution
- Step 1: Write the proportion equation
74,186.28 : 102,376.44 = 40,194.12 : x - Step 2: Convert to fraction form
74,186.28/102,376.44 = 40,194.12/x - Step 3: Cross multiply
74,186.28x = 102,376.44 × 40,194.12 - Step 4: Simplify right side
74,186.28x = 4,114,930,914.53 - Step 5: Solve for x
x = 4,114,930,914.53/74,186.28 - Step 6: Final answer
x = 55,467.55
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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.