Finding the Fourth Proportional to 75,541.41, 113,295.92 and 31,156.65
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Solution
The fourth proportional to 75,541.41, 113,295.92 and 31,156.65 is: 46,728.29
Step by Step Solution
- Step 1: Write the proportion equation
75,541.41 : 113,295.92 = 31,156.65 : x - Step 2: Convert to fraction form
75,541.41/113,295.92 = 31,156.65/x - Step 3: Cross multiply
75,541.41x = 113,295.92 × 31,156.65 - Step 4: Simplify right side
75,541.41x = 3,529,921,170.08 - Step 5: Solve for x
x = 3,529,921,170.08/75,541.41 - Step 6: Final answer
x = 46,728.29
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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.