Finding the Fourth Proportional to 98,392.84, 135,757.97 and 57,550.62
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Solution
The fourth proportional to 98,392.84, 135,757.97 and 57,550.62 is: 79,405.72
Step by Step Solution
- Step 1: Write the proportion equation
98,392.84 : 135,757.97 = 57,550.62 : x - Step 2: Convert to fraction form
98,392.84/135,757.97 = 57,550.62/x - Step 3: Cross multiply
98,392.84x = 135,757.97 × 57,550.62 - Step 4: Simplify right side
98,392.84x = 7,812,954,376.90 - Step 5: Solve for x
x = 7,812,954,376.90/98,392.84 - Step 6: Final answer
x = 79,405.72
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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.