Finding the Fourth Proportional to 68,258.50, 102,387.75 and 19,010.50
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Solution
The fourth proportional to 68,258.50, 102,387.75 and 19,010.50 is: 28,515.75
Step by Step Solution
- Step 1: Write the proportion equation
68,258.50 : 102,387.75 = 19,010.50 : x - Step 2: Convert to fraction form
68,258.50/102,387.75 = 19,010.50/x - Step 3: Cross multiply
68,258.50x = 102,387.75 × 19,010.50 - Step 4: Simplify right side
68,258.50x = 1,946,442,321.38 - Step 5: Solve for x
x = 1,946,442,321.38/68,258.50 - Step 6: Final answer
x = 28,515.75
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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.