Finding the Fourth Proportional to 92,680.08, 138,998.79 and 55,250.70
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Solution
The fourth proportional to 92,680.08, 138,998.79 and 55,250.70 is: 82,863.33
Step by Step Solution
- Step 1: Write the proportion equation
92,680.08 : 138,998.79 = 55,250.70 : x - Step 2: Convert to fraction form
92,680.08/138,998.79 = 55,250.70/x - Step 3: Cross multiply
92,680.08x = 138,998.79 × 55,250.70 - Step 4: Simplify right side
92,680.08x = 7,679,780,446.65 - Step 5: Solve for x
x = 7,679,780,446.65/92,680.08 - Step 6: Final answer
x = 82,863.33
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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.