Finding the Fourth Proportional to 68,435.53, 102,618.25 and 36,432.79
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Solution
The fourth proportional to 68,435.53, 102,618.25 and 36,432.79 is: 54,630.52
Step by Step Solution
- Step 1: Write the proportion equation
68,435.53 : 102,618.25 = 36,432.79 : x - Step 2: Convert to fraction form
68,435.53/102,618.25 = 36,432.79/x - Step 3: Cross multiply
68,435.53x = 102,618.25 × 36,432.79 - Step 4: Simplify right side
68,435.53x = 3,738,669,060.96 - Step 5: Solve for x
x = 3,738,669,060.96/68,435.53 - Step 6: Final answer
x = 54,630.52
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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.