Finding the Fourth Proportional to 83,815.52, 125,675.68 and 27,640.32
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Solution
The fourth proportional to 83,815.52, 125,675.68 and 27,640.32 is: 41,444.78
Step by Step Solution
- Step 1: Write the proportion equation
83,815.52 : 125,675.68 = 27,640.32 : x - Step 2: Convert to fraction form
83,815.52/125,675.68 = 27,640.32/x - Step 3: Cross multiply
83,815.52x = 125,675.68 × 27,640.32 - Step 4: Simplify right side
83,815.52x = 3,473,716,011.42 - Step 5: Solve for x
x = 3,473,716,011.42/83,815.52 - Step 6: Final answer
x = 41,444.78
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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.