Finding the Fourth Proportional to 74,884.26, 103,340.52 and 40,893.06
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Solution
The fourth proportional to 74,884.26, 103,340.52 and 40,893.06 is: 56,432.55
Step by Step Solution
- Step 1: Write the proportion equation
74,884.26 : 103,340.52 = 40,893.06 : x - Step 2: Convert to fraction form
74,884.26/103,340.52 = 40,893.06/x - Step 3: Cross multiply
74,884.26x = 103,340.52 × 40,893.06 - Step 4: Simplify right side
74,884.26x = 4,225,910,084.79 - Step 5: Solve for x
x = 4,225,910,084.79/74,884.26 - Step 6: Final answer
x = 56,432.55
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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.