Finding the Fourth Proportional to 73,205.21, 109,752.60 and 39,953.63
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Solution
The fourth proportional to 73,205.21, 109,752.60 and 39,953.63 is: 59,900.31
Step by Step Solution
- Step 1: Write the proportion equation
73,205.21 : 109,752.60 = 39,953.63 : x - Step 2: Convert to fraction form
73,205.21/109,752.60 = 39,953.63/x - Step 3: Cross multiply
73,205.21x = 109,752.60 × 39,953.63 - Step 4: Simplify right side
73,205.21x = 4,385,015,196.15 - Step 5: Solve for x
x = 4,385,015,196.15/73,205.21 - Step 6: Final answer
x = 59,900.31
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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.