Finding the Fourth Proportional to 98,757.08, 136,287.86 and 54,045.08
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Solution
The fourth proportional to 98,757.08, 136,287.86 and 54,045.08 is: 74,583.90
Step by Step Solution
- Step 1: Write the proportion equation
98,757.08 : 136,287.86 = 54,045.08 : x - Step 2: Convert to fraction form
98,757.08/136,287.86 = 54,045.08/x - Step 3: Cross multiply
98,757.08x = 136,287.86 × 54,045.08 - Step 4: Simplify right side
98,757.08x = 7,365,688,296.73 - Step 5: Solve for x
x = 7,365,688,296.73/98,757.08 - Step 6: Final answer
x = 74,583.90
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.