Finding the Fourth Proportional to 87,570.14, 120,838.08 and 49,328.62
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Solution
The fourth proportional to 87,570.14, 120,838.08 and 49,328.62 is: 68,068.59
Step by Step Solution
- Step 1: Write the proportion equation
87,570.14 : 120,838.08 = 49,328.62 : x - Step 2: Convert to fraction form
87,570.14/120,838.08 = 49,328.62/x - Step 3: Cross multiply
87,570.14x = 120,838.08 × 49,328.62 - Step 4: Simplify right side
87,570.14x = 5,960,775,729.85 - Step 5: Solve for x
x = 5,960,775,729.85/87,570.14 - Step 6: Final answer
x = 68,068.59
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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.