Finding the Fourth Proportional to 87,779.97, 131,689.71 and 27,812.07
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Solution
The fourth proportional to 87,779.97, 131,689.71 and 27,812.07 is: 41,724.36
Step by Step Solution
- Step 1: Write the proportion equation
87,779.97 : 131,689.71 = 27,812.07 : x - Step 2: Convert to fraction form
87,779.97/131,689.71 = 27,812.07/x - Step 3: Cross multiply
87,779.97x = 131,689.71 × 27,812.07 - Step 4: Simplify right side
87,779.97x = 3,662,563,432.80 - Step 5: Solve for x
x = 3,662,563,432.80/87,779.97 - Step 6: Final answer
x = 41,724.36
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1.5x scale
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.