Finding the Fourth Proportional to 74,427.18, 102,708.99 and 40,893.90
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Solution
The fourth proportional to 74,427.18, 102,708.99 and 40,893.90 is: 56,433.30
Step by Step Solution
- Step 1: Write the proportion equation
74,427.18 : 102,708.99 = 40,893.90 : x - Step 2: Convert to fraction form
74,427.18/102,708.99 = 40,893.90/x - Step 3: Cross multiply
74,427.18x = 102,708.99 × 40,893.90 - Step 4: Simplify right side
74,427.18x = 4,200,171,166.16 - Step 5: Solve for x
x = 4,200,171,166.16/74,427.18 - Step 6: Final answer
x = 56,433.30
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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.