Finding the Fourth Proportional to 76,205.28, 114,381.84 and 36,790.08
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Solution
The fourth proportional to 76,205.28, 114,381.84 and 36,790.08 is: 55,220.81
Step by Step Solution
- Step 1: Write the proportion equation
76,205.28 : 114,381.84 = 36,790.08 : x - Step 2: Convert to fraction form
76,205.28/114,381.84 = 36,790.08/x - Step 3: Cross multiply
76,205.28x = 114,381.84 × 36,790.08 - Step 4: Simplify right side
76,205.28x = 4,208,117,044.15 - Step 5: Solve for x
x = 4,208,117,044.15/76,205.28 - Step 6: Final answer
x = 55,220.81
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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.