Finding the Fourth Proportional to 71,121.08, 106,748.58 and 36,085.88
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Solution
The fourth proportional to 71,121.08, 106,748.58 and 36,085.88 is: 54,162.79
Step by Step Solution
- Step 1: Write the proportion equation
71,121.08 : 106,748.58 = 36,085.88 : x - Step 2: Convert to fraction form
71,121.08/106,748.58 = 36,085.88/x - Step 3: Cross multiply
71,121.08x = 106,748.58 × 36,085.88 - Step 4: Simplify right side
71,121.08x = 3,852,116,448.05 - Step 5: Solve for x
x = 3,852,116,448.05/71,121.08 - Step 6: Final answer
x = 54,162.79
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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.