Finding the Fourth Proportional to 68,256.96, 102,381.68 and 20,872.02
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Solution
The fourth proportional to 68,256.96, 102,381.68 and 20,872.02 is: 31,306.88
Step by Step Solution
- Step 1: Write the proportion equation
68,256.96 : 102,381.68 = 20,872.02 : x - Step 2: Convert to fraction form
68,256.96/102,381.68 = 20,872.02/x - Step 3: Cross multiply
68,256.96x = 102,381.68 × 20,872.02 - Step 4: Simplify right side
68,256.96x = 2,136,912,472.59 - Step 5: Solve for x
x = 2,136,912,472.59/68,256.96 - Step 6: Final answer
x = 31,306.88
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.