Finding the Fourth Proportional to 68,474.56, 102,711.57 and 21,731.08
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Solution
The fourth proportional to 68,474.56, 102,711.57 and 21,731.08 is: 32,596.53
Step by Step Solution
- Step 1: Write the proportion equation
68,474.56 : 102,711.57 = 21,731.08 : x - Step 2: Convert to fraction form
68,474.56/102,711.57 = 21,731.08/x - Step 3: Cross multiply
68,474.56x = 102,711.57 × 21,731.08 - Step 4: Simplify right side
68,474.56x = 2,232,033,344.60 - Step 5: Solve for x
x = 2,232,033,344.60/68,474.56 - Step 6: Final answer
x = 32,596.53
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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.