Finding the Fourth Proportional to 98,828.19, 136,381.90 and 53,504.97
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Solution
The fourth proportional to 98,828.19, 136,381.90 and 53,504.97 is: 73,836.32
Step by Step Solution
- Step 1: Write the proportion equation
98,828.19 : 136,381.90 = 53,504.97 : x - Step 2: Convert to fraction form
98,828.19/136,381.90 = 53,504.97/x - Step 3: Cross multiply
98,828.19x = 136,381.90 × 53,504.97 - Step 4: Simplify right side
98,828.19x = 7,297,109,468.04 - Step 5: Solve for x
x = 7,297,109,468.04/98,828.19 - Step 6: Final answer
x = 73,836.32
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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.