Finding the Fourth Proportional to 68,276.26, 102,414.40 and 19,028.26
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Solution
The fourth proportional to 68,276.26, 102,414.40 and 19,028.26 is: 28,542.39
Step by Step Solution
- Step 1: Write the proportion equation
68,276.26 : 102,414.40 = 19,028.26 : x - Step 2: Convert to fraction form
68,276.26/102,414.40 = 19,028.26/x - Step 3: Cross multiply
68,276.26x = 102,414.40 × 19,028.26 - Step 4: Simplify right side
68,276.26x = 1,948,767,830.94 - Step 5: Solve for x
x = 1,948,767,830.94/68,276.26 - Step 6: Final answer
x = 28,542.39
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1.5x scale
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.