Finding the Fourth Proportional to 73,175.08, 100,981.92 and 39,641.08
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Solution
The fourth proportional to 73,175.08, 100,981.92 and 39,641.08 is: 54,704.86
Step by Step Solution
- Step 1: Write the proportion equation
73,175.08 : 100,981.92 = 39,641.08 : x - Step 2: Convert to fraction form
73,175.08/100,981.92 = 39,641.08/x - Step 3: Cross multiply
73,175.08x = 100,981.92 × 39,641.08 - Step 4: Simplify right side
73,175.08x = 4,003,032,369.27 - Step 5: Solve for x
x = 4,003,032,369.27/73,175.08 - Step 6: Final answer
x = 54,704.86
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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.