Finding the Fourth Proportional to 79,043.68, 109,075.71 and 43,233.99
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Solution
The fourth proportional to 79,043.68, 109,075.71 and 43,233.99 is: 59,660.41
Step by Step Solution
- Step 1: Write the proportion equation
79,043.68 : 109,075.71 = 43,233.99 : x - Step 2: Convert to fraction form
79,043.68/109,075.71 = 43,233.99/x - Step 3: Cross multiply
79,043.68x = 109,075.71 × 43,233.99 - Step 4: Simplify right side
79,043.68x = 4,715,778,155.38 - Step 5: Solve for x
x = 4,715,778,155.38/79,043.68 - Step 6: Final answer
x = 59,660.41
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.