Finding the Fourth Proportional to 98,217.36, 135,535.56 and 57,385.26
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Solution
The fourth proportional to 98,217.36, 135,535.56 and 57,385.26 is: 79,189.09
Step by Step Solution
- Step 1: Write the proportion equation
98,217.36 : 135,535.56 = 57,385.26 : x - Step 2: Convert to fraction form
98,217.36/135,535.56 = 57,385.26/x - Step 3: Cross multiply
98,217.36x = 135,535.56 × 57,385.26 - Step 4: Simplify right side
98,217.36x = 7,777,743,349.85 - Step 5: Solve for x
x = 7,777,743,349.85/98,217.36 - Step 6: Final answer
x = 79,189.09
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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.