Finding the Fourth Proportional to 74,427.26, 102,709.60 and 40,893.26
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Solution
The fourth proportional to 74,427.26, 102,709.60 and 40,893.26 is: 56,432.69
Step by Step Solution
- Step 1: Write the proportion equation
74,427.26 : 102,709.60 = 40,893.26 : x - Step 2: Convert to fraction form
74,427.26/102,709.60 = 40,893.26/x - Step 3: Cross multiply
74,427.26x = 102,709.60 × 40,893.26 - Step 4: Simplify right side
74,427.26x = 4,200,130,377.30 - Step 5: Solve for x
x = 4,200,130,377.30/74,427.26 - Step 6: Final answer
x = 56,432.69
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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.