Finding the Fourth Proportional to 90,757.62, 125,256.72 and 54,960.12
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Solution
The fourth proportional to 90,757.62, 125,256.72 and 54,960.12 is: 75,851.75
Step by Step Solution
- Step 1: Write the proportion equation
90,757.62 : 125,256.72 = 54,960.12 : x - Step 2: Convert to fraction form
90,757.62/125,256.72 = 54,960.12/x - Step 3: Cross multiply
90,757.62x = 125,256.72 × 54,960.12 - Step 4: Simplify right side
90,757.62x = 6,884,124,362.01 - Step 5: Solve for x
x = 6,884,124,362.01/90,757.62 - Step 6: Final answer
x = 75,851.75
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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.