Finding the Fourth Proportional to 87,515.02, 120,771.66 and 49,791.70
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Solution
The fourth proportional to 87,515.02, 120,771.66 and 49,791.70 is: 68,713.08
Step by Step Solution
- Step 1: Write the proportion equation
87,515.02 : 120,771.66 = 49,791.70 : x - Step 2: Convert to fraction form
87,515.02/120,771.66 = 49,791.70/x - Step 3: Cross multiply
87,515.02x = 120,771.66 × 49,791.70 - Step 4: Simplify right side
87,515.02x = 6,013,426,263.22 - Step 5: Solve for x
x = 6,013,426,263.22/87,515.02 - Step 6: Final answer
x = 68,713.08
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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.