Finding the Fourth Proportional to 68,792.03, 103,176.99 and 18,860.55
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Solution
The fourth proportional to 68,792.03, 103,176.99 and 18,860.55 is: 28,287.79
Step by Step Solution
- Step 1: Write the proportion equation
68,792.03 : 103,176.99 = 18,860.55 : x - Step 2: Convert to fraction form
68,792.03/103,176.99 = 18,860.55/x - Step 3: Cross multiply
68,792.03x = 103,176.99 × 18,860.55 - Step 4: Simplify right side
68,792.03x = 1,945,974,391.83 - Step 5: Solve for x
x = 1,945,974,391.83/68,792.03 - Step 6: Final answer
x = 28,287.79
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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.