Finding the Fourth Proportional to 73,920.20, 110,858.70 and 26,529.80
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Solution
The fourth proportional to 73,920.20, 110,858.70 and 26,529.80 is: 39,786.95
Step by Step Solution
- Step 1: Write the proportion equation
73,920.20 : 110,858.70 = 26,529.80 : x - Step 2: Convert to fraction form
73,920.20/110,858.70 = 26,529.80/x - Step 3: Cross multiply
73,920.20x = 110,858.70 × 26,529.80 - Step 4: Simplify right side
73,920.20x = 2,941,059,139.26 - Step 5: Solve for x
x = 2,941,059,139.26/73,920.20 - Step 6: Final answer
x = 39,786.95
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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.