Finding the Fourth Proportional to 91,255.68, 125,919.36 and 53,542.08
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Solution
The fourth proportional to 91,255.68, 125,919.36 and 53,542.08 is: 73,880.16
Step by Step Solution
- Step 1: Write the proportion equation
91,255.68 : 125,919.36 = 53,542.08 : x - Step 2: Convert to fraction form
91,255.68/125,919.36 = 53,542.08/x - Step 3: Cross multiply
91,255.68x = 125,919.36 × 53,542.08 - Step 4: Simplify right side
91,255.68x = 6,741,984,446.67 - Step 5: Solve for x
x = 6,741,984,446.67/91,255.68 - Step 6: Final answer
x = 73,880.16
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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.