Finding the Fourth Proportional to 98,517.75, 135,954.50 and 53,805.75
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Solution
The fourth proportional to 98,517.75, 135,954.50 and 53,805.75 is: 74,251.94
Step by Step Solution
- Step 1: Write the proportion equation
98,517.75 : 135,954.50 = 53,805.75 : x - Step 2: Convert to fraction form
98,517.75/135,954.50 = 53,805.75/x - Step 3: Cross multiply
98,517.75x = 135,954.50 × 53,805.75 - Step 4: Simplify right side
98,517.75x = 7,315,133,569.35 - Step 5: Solve for x
x = 7,315,133,569.35/98,517.75 - Step 6: Final answer
x = 74,251.94
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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.