Finding the Fourth Proportional to 98,316.17, 135,687.84 and 55,881.08
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Solution
The fourth proportional to 98,316.17, 135,687.84 and 55,881.08 is: 77,122.44
Step by Step Solution
- Step 1: Write the proportion equation
98,316.17 : 135,687.84 = 55,881.08 : x - Step 2: Convert to fraction form
98,316.17/135,687.84 = 55,881.08/x - Step 3: Cross multiply
98,316.17x = 135,687.84 × 55,881.08 - Step 4: Simplify right side
98,316.17x = 7,582,383,171.73 - Step 5: Solve for x
x = 7,582,383,171.73/98,316.17 - Step 6: Final answer
x = 77,122.44
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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.