Finding the Fourth Proportional to 98,678.24, 136,175.66 and 53,355.92
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Solution
The fourth proportional to 98,678.24, 136,175.66 and 53,355.92 is: 73,631.00
Step by Step Solution
- Step 1: Write the proportion equation
98,678.24 : 136,175.66 = 53,355.92 : x - Step 2: Convert to fraction form
98,678.24/136,175.66 = 53,355.92/x - Step 3: Cross multiply
98,678.24x = 136,175.66 × 53,355.92 - Step 4: Simplify right side
98,678.24x = 7,265,777,620.91 - Step 5: Solve for x
x = 7,265,777,620.91/98,678.24 - Step 6: Final answer
x = 73,631.00
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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.