Finding the Fourth Proportional to 89,744.64, 123,841.68 and 53,913.44
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Solution
The fourth proportional to 89,744.64, 123,841.68 and 53,913.44 is: 74,396.99
Step by Step Solution
- Step 1: Write the proportion equation
89,744.64 : 123,841.68 = 53,913.44 : x - Step 2: Convert to fraction form
89,744.64/123,841.68 = 53,913.44/x - Step 3: Cross multiply
89,744.64x = 123,841.68 × 53,913.44 - Step 4: Simplify right side
89,744.64x = 6,676,730,984.18 - Step 5: Solve for x
x = 6,676,730,984.18/89,744.64 - Step 6: Final answer
x = 74,396.99
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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.