Finding the Fourth Proportional to 74,302.26, 102,538.90 and 40,768.26
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Solution
The fourth proportional to 74,302.26, 102,538.90 and 40,768.26 is: 56,261.18
Step by Step Solution
- Step 1: Write the proportion equation
74,302.26 : 102,538.90 = 40,768.26 : x - Step 2: Convert to fraction form
74,302.26/102,538.90 = 40,768.26/x - Step 3: Cross multiply
74,302.26x = 102,538.90 × 40,768.26 - Step 4: Simplify right side
74,302.26x = 4,180,332,535.31 - Step 5: Solve for x
x = 4,180,332,535.31/74,302.26 - Step 6: Final answer
x = 56,261.18
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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.