Finding the Fourth Proportional to 68,629.80, 102,867.90 and 39,061.80
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Solution
The fourth proportional to 68,629.80, 102,867.90 and 39,061.80 is: 58,548.99
Step by Step Solution
- Step 1: Write the proportion equation
68,629.80 : 102,867.90 = 39,061.80 : x - Step 2: Convert to fraction form
68,629.80/102,867.90 = 39,061.80/x - Step 3: Cross multiply
68,629.80x = 102,867.90 × 39,061.80 - Step 4: Simplify right side
68,629.80x = 4,018,205,336.22 - Step 5: Solve for x
x = 4,018,205,336.22/68,629.80 - Step 6: Final answer
x = 58,548.99
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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.