Finding the Fourth Proportional to 68,531.84, 102,747.92 and 46,290.08
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Solution
The fourth proportional to 68,531.84, 102,747.92 and 46,290.08 is: 69,401.46
Step by Step Solution
- Step 1: Write the proportion equation
68,531.84 : 102,747.92 = 46,290.08 : x - Step 2: Convert to fraction form
68,531.84/102,747.92 = 46,290.08/x - Step 3: Cross multiply
68,531.84x = 102,747.92 × 46,290.08 - Step 4: Simplify right side
68,531.84x = 4,756,209,436.63 - Step 5: Solve for x
x = 4,756,209,436.63/68,531.84 - Step 6: Final answer
x = 69,401.46
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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.