Finding the Fourth Proportional to 74,241.81, 102,452.58 and 40,249.71
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Solution
The fourth proportional to 74,241.81, 102,452.58 and 40,249.71 is: 55,543.99
Step by Step Solution
- Step 1: Write the proportion equation
74,241.81 : 102,452.58 = 40,249.71 : x - Step 2: Convert to fraction form
74,241.81/102,452.58 = 40,249.71/x - Step 3: Cross multiply
74,241.81x = 102,452.58 × 40,249.71 - Step 4: Simplify right side
74,241.81x = 4,123,686,633.75 - Step 5: Solve for x
x = 4,123,686,633.75/74,241.81 - Step 6: Final answer
x = 55,543.99
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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.