Finding the Fourth Proportional to 98,286.75, 135,635.81 and 53,574.75
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Solution
The fourth proportional to 98,286.75, 135,635.81 and 53,574.75 is: 73,933.20
Step by Step Solution
- Step 1: Write the proportion equation
98,286.75 : 135,635.81 = 53,574.75 : x - Step 2: Convert to fraction form
98,286.75/135,635.81 = 53,574.75/x - Step 3: Cross multiply
98,286.75x = 135,635.81 × 53,574.75 - Step 4: Simplify right side
98,286.75x = 7,266,654,343.92 - Step 5: Solve for x
x = 7,266,654,343.92/98,286.75 - Step 6: Final answer
x = 73,933.20
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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.