Finding the Fourth Proportional to 67,994.24, 101,991.35 and 21,247.12
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Solution
The fourth proportional to 67,994.24, 101,991.35 and 21,247.12 is: 31,870.67
Step by Step Solution
- Step 1: Write the proportion equation
67,994.24 : 101,991.35 = 21,247.12 : x - Step 2: Convert to fraction form
67,994.24/101,991.35 = 21,247.12/x - Step 3: Cross multiply
67,994.24x = 101,991.35 × 21,247.12 - Step 4: Simplify right side
67,994.24x = 2,167,021,836.22 - Step 5: Solve for x
x = 2,167,021,836.22/67,994.24 - Step 6: Final answer
x = 31,870.67
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Similar ratio
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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.