Finding the Fourth Proportional to 98,175.24, 147,286.44 and 31,621.68
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Solution
The fourth proportional to 98,175.24, 147,286.44 and 31,621.68 is: 47,440.11
Step by Step Solution
- Step 1: Write the proportion equation
98,175.24 : 147,286.44 = 31,621.68 : x - Step 2: Convert to fraction form
98,175.24/147,286.44 = 31,621.68/x - Step 3: Cross multiply
98,175.24x = 147,286.44 × 31,621.68 - Step 4: Simplify right side
98,175.24x = 4,657,444,674.02 - Step 5: Solve for x
x = 4,657,444,674.02/98,175.24 - Step 6: Final answer
x = 47,440.11
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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.