Finding the Fourth Proportional to 74,940.08, 103,414.11 and 40,948.03
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Solution
The fourth proportional to 74,940.08, 103,414.11 and 40,948.03 is: 56,506.53
Step by Step Solution
- Step 1: Write the proportion equation
74,940.08 : 103,414.11 = 40,948.03 : x - Step 2: Convert to fraction form
74,940.08/103,414.11 = 40,948.03/x - Step 3: Cross multiply
74,940.08x = 103,414.11 × 40,948.03 - Step 4: Simplify right side
74,940.08x = 4,234,604,078.70 - Step 5: Solve for x
x = 4,234,604,078.70/74,940.08 - Step 6: Final answer
x = 56,506.53
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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.