Finding the Fourth Proportional to 91,104.21, 125,734.77 and 53,378.46
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Solution
The fourth proportional to 91,104.21, 125,734.77 and 53,378.46 is: 73,668.70
Step by Step Solution
- Step 1: Write the proportion equation
91,104.21 : 125,734.77 = 53,378.46 : x - Step 2: Convert to fraction form
91,104.21/125,734.77 = 53,378.46/x - Step 3: Cross multiply
91,104.21x = 125,734.77 × 53,378.46 - Step 4: Simplify right side
91,104.21x = 6,711,528,391.05 - Step 5: Solve for x
x = 6,711,528,391.05/91,104.21 - Step 6: Final answer
x = 73,668.70
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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.