Finding the Fourth Proportional to 76,178.84, 114,341.97 and 36,763.70
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Solution
The fourth proportional to 76,178.84, 114,341.97 and 36,763.70 is: 55,181.12
Step by Step Solution
- Step 1: Write the proportion equation
76,178.84 : 114,341.97 = 36,763.70 : x - Step 2: Convert to fraction form
76,178.84/114,341.97 = 36,763.70/x - Step 3: Cross multiply
76,178.84x = 114,341.97 × 36,763.70 - Step 4: Simplify right side
76,178.84x = 4,203,633,882.49 - Step 5: Solve for x
x = 4,203,633,882.49/76,178.84 - Step 6: Final answer
x = 55,181.12
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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.