Finding the Fourth Proportional to 79,022.13, 118,524.06 and 19,853.30
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Solution
The fourth proportional to 79,022.13, 118,524.06 and 19,853.30 is: 29,777.65
Step by Step Solution
- Step 1: Write the proportion equation
79,022.13 : 118,524.06 = 19,853.30 : x - Step 2: Convert to fraction form
79,022.13/118,524.06 = 19,853.30/x - Step 3: Cross multiply
79,022.13x = 118,524.06 × 19,853.30 - Step 4: Simplify right side
79,022.13x = 2,353,093,127.78 - Step 5: Solve for x
x = 2,353,093,127.78/79,022.13 - Step 6: Final answer
x = 29,777.65
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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.