Finding the Fourth Proportional to 74,584.53, 102,939.44 and 47,725.74
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Solution
The fourth proportional to 74,584.53, 102,939.44 and 47,725.74 is: 65,869.70
Step by Step Solution
- Step 1: Write the proportion equation
74,584.53 : 102,939.44 = 47,725.74 : x - Step 2: Convert to fraction form
74,584.53/102,939.44 = 47,725.74/x - Step 3: Cross multiply
74,584.53x = 102,939.44 × 47,725.74 - Step 4: Simplify right side
74,584.53x = 4,912,860,710.56 - Step 5: Solve for x
x = 4,912,860,710.56/74,584.53 - Step 6: Final answer
x = 65,869.70
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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.