Finding the Fourth Proportional to 75,298.68, 103,920.36 and 48,099.80
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Solution
The fourth proportional to 75,298.68, 103,920.36 and 48,099.80 is: 66,382.94
Step by Step Solution
- Step 1: Write the proportion equation
75,298.68 : 103,920.36 = 48,099.80 : x - Step 2: Convert to fraction form
75,298.68/103,920.36 = 48,099.80/x - Step 3: Cross multiply
75,298.68x = 103,920.36 × 48,099.80 - Step 4: Simplify right side
75,298.68x = 4,998,548,012.33 - Step 5: Solve for x
x = 4,998,548,012.33/75,298.68 - Step 6: Final answer
x = 66,382.94
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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.