Finding the Fourth Proportional to 85,308.84, 117,732.81 and 47,075.99
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Solution
The fourth proportional to 85,308.84, 117,732.81 and 47,075.99 is: 64,968.51
Step by Step Solution
- Step 1: Write the proportion equation
85,308.84 : 117,732.81 = 47,075.99 : x - Step 2: Convert to fraction form
85,308.84/117,732.81 = 47,075.99/x - Step 3: Cross multiply
85,308.84x = 117,732.81 × 47,075.99 - Step 4: Simplify right side
85,308.84x = 5,542,387,997.57 - Step 5: Solve for x
x = 5,542,387,997.57/85,308.84 - Step 6: Final answer
x = 64,968.51
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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.