Finding the Fourth Proportional to 75,878.13, 104,716.67 and 42,344.13
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Solution
The fourth proportional to 75,878.13, 104,716.67 and 42,344.13 is: 58,437.60
Step by Step Solution
- Step 1: Write the proportion equation
75,878.13 : 104,716.67 = 42,344.13 : x - Step 2: Convert to fraction form
75,878.13/104,716.67 = 42,344.13/x - Step 3: Cross multiply
75,878.13x = 104,716.67 × 42,344.13 - Step 4: Simplify right side
75,878.13x = 4,434,136,075.93 - Step 5: Solve for x
x = 4,434,136,075.93/75,878.13 - Step 6: Final answer
x = 58,437.60
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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.