Finding the Fourth Proportional to 79,569.84, 109,804.18 and 43,759.84
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Solution
The fourth proportional to 79,569.84, 109,804.18 and 43,759.84 is: 60,387.37
Step by Step Solution
- Step 1: Write the proportion equation
79,569.84 : 109,804.18 = 43,759.84 : x - Step 2: Convert to fraction form
79,569.84/109,804.18 = 43,759.84/x - Step 3: Cross multiply
79,569.84x = 109,804.18 × 43,759.84 - Step 4: Simplify right side
79,569.84x = 4,805,013,348.13 - Step 5: Solve for x
x = 4,805,013,348.13/79,569.84 - Step 6: Final answer
x = 60,387.37
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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.