Finding the Fourth Proportional to 98,243.75, 135,576.32 and 53,531.75
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Solution
The fourth proportional to 98,243.75, 135,576.32 and 53,531.75 is: 73,873.78
Step by Step Solution
- Step 1: Write the proportion equation
98,243.75 : 135,576.32 = 53,531.75 : x - Step 2: Convert to fraction form
98,243.75/135,576.32 = 53,531.75/x - Step 3: Cross multiply
98,243.75x = 135,576.32 × 53,531.75 - Step 4: Simplify right side
98,243.75x = 7,257,637,739.44 - Step 5: Solve for x
x = 7,257,637,739.44/98,243.75 - Step 6: Final answer
x = 73,873.78
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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.