Finding the Fourth Proportional to 83,689.67, 125,507.84 and 27,516.74
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Solution
The fourth proportional to 83,689.67, 125,507.84 and 27,516.74 is: 41,266.33
Step by Step Solution
- Step 1: Write the proportion equation
83,689.67 : 125,507.84 = 27,516.74 : x - Step 2: Convert to fraction form
83,689.67/125,507.84 = 27,516.74/x - Step 3: Cross multiply
83,689.67x = 125,507.84 × 27,516.74 - Step 4: Simplify right side
83,689.67x = 3,453,565,836.12 - Step 5: Solve for x
x = 3,453,565,836.12/83,689.67 - Step 6: Final answer
x = 41,266.33
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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.