Finding the Fourth Proportional to 98,905.05, 136,489.39 and 53,582.92
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Solution
The fourth proportional to 98,905.05, 136,489.39 and 53,582.92 is: 73,944.65
Step by Step Solution
- Step 1: Write the proportion equation
98,905.05 : 136,489.39 = 53,582.92 : x - Step 2: Convert to fraction form
98,905.05/136,489.39 = 53,582.92/x - Step 3: Cross multiply
98,905.05x = 136,489.39 × 53,582.92 - Step 4: Simplify right side
98,905.05x = 7,313,499,590.04 - Step 5: Solve for x
x = 7,313,499,590.04/98,905.05 - Step 6: Final answer
x = 73,944.65
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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.