Finding the Fourth Proportional to 112,771.53, 155,624.63 and 61,787.44
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Solution
The fourth proportional to 112,771.53, 155,624.63 and 61,787.44 is: 85,266.62
Step by Step Solution
- Step 1: Write the proportion equation
112,771.53 : 155,624.63 = 61,787.44 : x - Step 2: Convert to fraction form
112,771.53/155,624.63 = 61,787.44/x - Step 3: Cross multiply
112,771.53x = 155,624.63 × 61,787.44 - Step 4: Simplify right side
112,771.53x = 9,615,647,374.24 - Step 5: Solve for x
x = 9,615,647,374.24/112,771.53 - Step 6: Final answer
x = 85,266.62
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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.