Finding the Fourth Proportional to 75,132.09, 103,677.84 and 41,140.44
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Solution
The fourth proportional to 75,132.09, 103,677.84 and 41,140.44 is: 56,771.37
Step by Step Solution
- Step 1: Write the proportion equation
75,132.09 : 103,677.84 = 41,140.44 : x - Step 2: Convert to fraction form
75,132.09/103,677.84 = 41,140.44/x - Step 3: Cross multiply
75,132.09x = 103,677.84 × 41,140.44 - Step 4: Simplify right side
75,132.09x = 4,265,351,955.85 - Step 5: Solve for x
x = 4,265,351,955.85/75,132.09 - Step 6: Final answer
x = 56,771.37
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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.