Finding the Fourth Proportional to 89,219.13, 123,121.35 and 48,382.62
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Solution
The fourth proportional to 89,219.13, 123,121.35 and 48,382.62 is: 66,767.45
Step by Step Solution
- Step 1: Write the proportion equation
89,219.13 : 123,121.35 = 48,382.62 : x - Step 2: Convert to fraction form
89,219.13/123,121.35 = 48,382.62/x - Step 3: Cross multiply
89,219.13x = 123,121.35 × 48,382.62 - Step 4: Simplify right side
89,219.13x = 5,956,933,490.94 - Step 5: Solve for x
x = 5,956,933,490.94/89,219.13 - Step 6: Final answer
x = 66,767.45
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1.5x scale
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.