Finding the Fourth Proportional to 74,252.21, 102,458.86 and 47,410.43
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Solution
The fourth proportional to 74,252.21, 102,458.86 and 47,410.43 is: 65,420.52
Step by Step Solution
- Step 1: Write the proportion equation
74,252.21 : 102,458.86 = 47,410.43 : x - Step 2: Convert to fraction form
74,252.21/102,458.86 = 47,410.43/x - Step 3: Cross multiply
74,252.21x = 102,458.86 × 47,410.43 - Step 4: Simplify right side
74,252.21x = 4,857,617,979.09 - Step 5: Solve for x
x = 4,857,617,979.09/74,252.21 - Step 6: Final answer
x = 65,420.52
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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.