Finding the Fourth Proportional to 75,874.57, 113,755.62 and 36,394.09
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Solution
The fourth proportional to 75,874.57, 113,755.62 and 36,394.09 is: 54,564.16
Step by Step Solution
- Step 1: Write the proportion equation
75,874.57 : 113,755.62 = 36,394.09 : x - Step 2: Convert to fraction form
75,874.57/113,755.62 = 36,394.09/x - Step 3: Cross multiply
75,874.57x = 113,755.62 × 36,394.09 - Step 4: Simplify right side
75,874.57x = 4,140,032,272.29 - Step 5: Solve for x
x = 4,140,032,272.29/75,874.57 - Step 6: Final answer
x = 54,564.16
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.