Finding the Fourth Proportional to 75,409.92, 104,070.96 and 41,878.08
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Solution
The fourth proportional to 75,409.92, 104,070.96 and 41,878.08 is: 57,794.68
Step by Step Solution
- Step 1: Write the proportion equation
75,409.92 : 104,070.96 = 41,878.08 : x - Step 2: Convert to fraction form
75,409.92/104,070.96 = 41,878.08/x - Step 3: Cross multiply
75,409.92x = 104,070.96 × 41,878.08 - Step 4: Simplify right side
75,409.92x = 4,358,291,988.56 - Step 5: Solve for x
x = 4,358,291,988.56/75,409.92 - Step 6: Final answer
x = 57,794.68
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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.