Finding the Fourth Proportional to 90,230.76, 135,306.72 and 27,886.68
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Solution
The fourth proportional to 90,230.76, 135,306.72 and 27,886.68 is: 41,817.84
Step by Step Solution
- Step 1: Write the proportion equation
90,230.76 : 135,306.72 = 27,886.68 : x - Step 2: Convert to fraction form
90,230.76/135,306.72 = 27,886.68/x - Step 3: Cross multiply
90,230.76x = 135,306.72 × 27,886.68 - Step 4: Simplify right side
90,230.76x = 3,773,255,202.49 - Step 5: Solve for x
x = 3,773,255,202.49/90,230.76 - Step 6: Final answer
x = 41,817.84
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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.