Finding the Fourth Proportional to 98,903.30, 136,486.84 and 53,581.08
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Solution
The fourth proportional to 98,903.30, 136,486.84 and 53,581.08 is: 73,942.05
Step by Step Solution
- Step 1: Write the proportion equation
98,903.30 : 136,486.84 = 53,581.08 : x - Step 2: Convert to fraction form
98,903.30/136,486.84 = 53,581.08/x - Step 3: Cross multiply
98,903.30x = 136,486.84 × 53,581.08 - Step 4: Simplify right side
98,903.30x = 7,313,112,292.99 - Step 5: Solve for x
x = 7,313,112,292.99/98,903.30 - Step 6: Final answer
x = 73,942.05
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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.