Finding the Fourth Proportional to 94,621.30, 130,571.42 and 54,306.68
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Solution
The fourth proportional to 94,621.30, 130,571.42 and 54,306.68 is: 74,939.79
Step by Step Solution
- Step 1: Write the proportion equation
94,621.30 : 130,571.42 = 54,306.68 : x - Step 2: Convert to fraction form
94,621.30/130,571.42 = 54,306.68/x - Step 3: Cross multiply
94,621.30x = 130,571.42 × 54,306.68 - Step 4: Simplify right side
94,621.30x = 7,090,900,323.09 - Step 5: Solve for x
x = 7,090,900,323.09/94,621.30 - Step 6: Final answer
x = 74,939.79
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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.