Finding the Fourth Proportional to 75,172.99, 112,620.29 and 37,689.31
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Solution
The fourth proportional to 75,172.99, 112,620.29 and 37,689.31 is: 56,464.17
Step by Step Solution
- Step 1: Write the proportion equation
75,172.99 : 112,620.29 = 37,689.31 : x - Step 2: Convert to fraction form
75,172.99/112,620.29 = 37,689.31/x - Step 3: Cross multiply
75,172.99x = 112,620.29 × 37,689.31 - Step 4: Simplify right side
75,172.99x = 4,244,580,833.65 - Step 5: Solve for x
x = 4,244,580,833.65/75,172.99 - Step 6: Final answer
x = 56,464.17
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.