Finding the Fourth Proportional to 87,268.26, 120,441.48 and 53,269.62
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Solution
The fourth proportional to 87,268.26, 120,441.48 and 53,269.62 is: 73,518.96
Step by Step Solution
- Step 1: Write the proportion equation
87,268.26 : 120,441.48 = 53,269.62 : x - Step 2: Convert to fraction form
87,268.26/120,441.48 = 53,269.62/x - Step 3: Cross multiply
87,268.26x = 120,441.48 × 53,269.62 - Step 4: Simplify right side
87,268.26x = 6,415,871,871.84 - Step 5: Solve for x
x = 6,415,871,871.84/87,268.26 - Step 6: Final answer
x = 73,518.96
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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.