Finding the Fourth Proportional to 90,326.34, 135,488.30 and 27,996.84
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Solution
The fourth proportional to 90,326.34, 135,488.30 and 27,996.84 is: 41,994.88
Step by Step Solution
- Step 1: Write the proportion equation
90,326.34 : 135,488.30 = 27,996.84 : x - Step 2: Convert to fraction form
90,326.34/135,488.30 = 27,996.84/x - Step 3: Cross multiply
90,326.34x = 135,488.30 × 27,996.84 - Step 4: Simplify right side
90,326.34x = 3,793,244,116.99 - Step 5: Solve for x
x = 3,793,244,116.99/90,326.34 - Step 6: Final answer
x = 41,994.88
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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.