Finding the Fourth Proportional to 87,269.76, 120,428.64 and 49,546.08
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Solution
The fourth proportional to 87,269.76, 120,428.64 and 49,546.08 is: 68,371.53
Step by Step Solution
- Step 1: Write the proportion equation
87,269.76 : 120,428.64 = 49,546.08 : x - Step 2: Convert to fraction form
87,269.76/120,428.64 = 49,546.08/x - Step 3: Cross multiply
87,269.76x = 120,428.64 × 49,546.08 - Step 4: Simplify right side
87,269.76x = 5,966,767,031.73 - Step 5: Solve for x
x = 5,966,767,031.73/87,269.76 - Step 6: Final answer
x = 68,371.53
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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.