Finding the Fourth Proportional to 97,858.73, 135,042.75 and 57,575.09
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Solution
The fourth proportional to 97,858.73, 135,042.75 and 57,575.09 is: 79,452.27
Step by Step Solution
- Step 1: Write the proportion equation
97,858.73 : 135,042.75 = 57,575.09 : x - Step 2: Convert to fraction form
97,858.73/135,042.75 = 57,575.09/x - Step 3: Cross multiply
97,858.73x = 135,042.75 × 57,575.09 - Step 4: Simplify right side
97,858.73x = 7,775,098,485.10 - Step 5: Solve for x
x = 7,775,098,485.10/97,858.73 - Step 6: Final answer
x = 79,452.27
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1.5x scale
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.