Finding the Fourth Proportional to 86,563.05, 129,862.80 and 27,404.70
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Solution
The fourth proportional to 86,563.05, 129,862.80 and 27,404.70 is: 41,112.82
Step by Step Solution
- Step 1: Write the proportion equation
86,563.05 : 129,862.80 = 27,404.70 : x - Step 2: Convert to fraction form
86,563.05/129,862.80 = 27,404.70/x - Step 3: Cross multiply
86,563.05x = 129,862.80 × 27,404.70 - Step 4: Simplify right side
86,563.05x = 3,558,851,075.16 - Step 5: Solve for x
x = 3,558,851,075.16/86,563.05 - Step 6: Final answer
x = 41,112.82
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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.