Finding the Fourth Proportional to 115,970.70, 173,956.86 and 31,729.08
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Solution
The fourth proportional to 115,970.70, 173,956.86 and 31,729.08 is: 47,593.84
Step by Step Solution
- Step 1: Write the proportion equation
115,970.70 : 173,956.86 = 31,729.08 : x - Step 2: Convert to fraction form
115,970.70/173,956.86 = 31,729.08/x - Step 3: Cross multiply
115,970.70x = 173,956.86 × 31,729.08 - Step 4: Simplify right side
115,970.70x = 5,519,491,127.49 - Step 5: Solve for x
x = 5,519,491,127.49/115,970.70 - Step 6: Final answer
x = 47,593.84
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.