Finding the Fourth Proportional to 72,475.84, 108,596.56 and 39,211.60
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Solution
The fourth proportional to 72,475.84, 108,596.56 and 39,211.60 is: 58,753.99
Step by Step Solution
- Step 1: Write the proportion equation
72,475.84 : 108,596.56 = 39,211.60 : x - Step 2: Convert to fraction form
72,475.84/108,596.56 = 39,211.60/x - Step 3: Cross multiply
72,475.84x = 108,596.56 × 39,211.60 - Step 4: Simplify right side
72,475.84x = 4,258,244,872.10 - Step 5: Solve for x
x = 4,258,244,872.10/72,475.84 - Step 6: Final answer
x = 58,753.99
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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.