Finding the Fourth Proportional to 98,305.62, 135,660.13 and 54,696.54
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Solution
The fourth proportional to 98,305.62, 135,660.13 and 54,696.54 is: 75,480.31
Step by Step Solution
- Step 1: Write the proportion equation
98,305.62 : 135,660.13 = 54,696.54 : x - Step 2: Convert to fraction form
98,305.62/135,660.13 = 54,696.54/x - Step 3: Cross multiply
98,305.62x = 135,660.13 × 54,696.54 - Step 4: Simplify right side
98,305.62x = 7,420,139,081.48 - Step 5: Solve for x
x = 7,420,139,081.48/98,305.62 - Step 6: Final answer
x = 75,480.31
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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.