Finding the Fourth Proportional to 97,747.78, 134,880.57 and 54,729.70
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Solution
The fourth proportional to 97,747.78, 134,880.57 and 54,729.70 is: 75,520.62
Step by Step Solution
- Step 1: Write the proportion equation
97,747.78 : 134,880.57 = 54,729.70 : x - Step 2: Convert to fraction form
97,747.78/134,880.57 = 54,729.70/x - Step 3: Cross multiply
97,747.78x = 134,880.57 × 54,729.70 - Step 4: Simplify right side
97,747.78x = 7,381,973,131.93 - Step 5: Solve for x
x = 7,381,973,131.93/97,747.78 - Step 6: Final answer
x = 75,520.62
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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.