Finding the Fourth Proportional to 83,711.88, 115,527.06 and 47,893.68
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Solution
The fourth proportional to 83,711.88, 115,527.06 and 47,893.68 is: 66,095.95
Step by Step Solution
- Step 1: Write the proportion equation
83,711.88 : 115,527.06 = 47,893.68 : x - Step 2: Convert to fraction form
83,711.88/115,527.06 = 47,893.68/x - Step 3: Cross multiply
83,711.88x = 115,527.06 × 47,893.68 - Step 4: Simplify right side
83,711.88x = 5,533,016,042.98 - Step 5: Solve for x
x = 5,533,016,042.98/83,711.88 - Step 6: Final answer
x = 66,095.95
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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.