Finding the Fourth Proportional to 74,954.70, 103,437.42 and 41,420.70
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Solution
The fourth proportional to 74,954.70, 103,437.42 and 41,420.70 is: 57,160.53
Step by Step Solution
- Step 1: Write the proportion equation
74,954.70 : 103,437.42 = 41,420.70 : x - Step 2: Convert to fraction form
74,954.70/103,437.42 = 41,420.70/x - Step 3: Cross multiply
74,954.70x = 103,437.42 × 41,420.70 - Step 4: Simplify right side
74,954.70x = 4,284,450,342.59 - Step 5: Solve for x
x = 4,284,450,342.59/74,954.70 - Step 6: Final answer
x = 57,160.53
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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.