Finding the Fourth Proportional to 68,283.42, 102,456.81 and 28,849.74
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Solution
The fourth proportional to 68,283.42, 102,456.81 and 28,849.74 is: 43,287.99
Step by Step Solution
- Step 1: Write the proportion equation
68,283.42 : 102,456.81 = 28,849.74 : x - Step 2: Convert to fraction form
68,283.42/102,456.81 = 28,849.74/x - Step 3: Cross multiply
68,283.42x = 102,456.81 × 28,849.74 - Step 4: Simplify right side
68,283.42x = 2,955,852,329.73 - Step 5: Solve for x
x = 2,955,852,329.73/68,283.42 - Step 6: Final answer
x = 43,287.99
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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.