Finding the Fourth Proportional to 68,634.08, 102,880.62 and 38,988.62
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Solution
The fourth proportional to 68,634.08, 102,880.62 and 38,988.62 is: 58,442.88
Step by Step Solution
- Step 1: Write the proportion equation
68,634.08 : 102,880.62 = 38,988.62 : x - Step 2: Convert to fraction form
68,634.08/102,880.62 = 38,988.62/x - Step 3: Cross multiply
68,634.08x = 102,880.62 × 38,988.62 - Step 4: Simplify right side
68,634.08x = 4,011,173,398.54 - Step 5: Solve for x
x = 4,011,173,398.54/68,634.08 - Step 6: Final answer
x = 58,442.88
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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.