Finding the Fourth Proportional to 74,181.24, 102,369.42 and 40,648.44
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Solution
The fourth proportional to 74,181.24, 102,369.42 and 40,648.44 is: 56,094.47
Step by Step Solution
- Step 1: Write the proportion equation
74,181.24 : 102,369.42 = 40,648.44 : x - Step 2: Convert to fraction form
74,181.24/102,369.42 = 40,648.44/x - Step 3: Cross multiply
74,181.24x = 102,369.42 × 40,648.44 - Step 4: Simplify right side
74,181.24x = 4,161,157,226.70 - Step 5: Solve for x
x = 4,161,157,226.70/74,181.24 - Step 6: Final answer
x = 56,094.47
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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.