Finding the Fourth Proportional to 68,125.35, 102,175.88 and 20,728.96
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Solution
The fourth proportional to 68,125.35, 102,175.88 and 20,728.96 is: 31,089.75
Step by Step Solution
- Step 1: Write the proportion equation
68,125.35 : 102,175.88 = 20,728.96 : x - Step 2: Convert to fraction form
68,125.35/102,175.88 = 20,728.96/x - Step 3: Cross multiply
68,125.35x = 102,175.88 × 20,728.96 - Step 4: Simplify right side
68,125.35x = 2,118,000,061.74 - Step 5: Solve for x
x = 2,118,000,061.74/68,125.35 - Step 6: Final answer
x = 31,089.75
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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.