Finding the Fourth Proportional to 74,344.52, 102,592.68 and 40,352.28
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Solution
The fourth proportional to 74,344.52, 102,592.68 and 40,352.28 is: 55,684.65
Step by Step Solution
- Step 1: Write the proportion equation
74,344.52 : 102,592.68 = 40,352.28 : x - Step 2: Convert to fraction form
74,344.52/102,592.68 = 40,352.28/x - Step 3: Cross multiply
74,344.52x = 102,592.68 × 40,352.28 - Step 4: Simplify right side
74,344.52x = 4,139,848,549.31 - Step 5: Solve for x
x = 4,139,848,549.31/74,344.52 - Step 6: Final answer
x = 55,684.65
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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.