Finding the Fourth Proportional to 75,623.68, 104,248.78 and 48,396.75
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Solution
The fourth proportional to 75,623.68, 104,248.78 and 48,396.75 is: 66,715.90
Step by Step Solution
- Step 1: Write the proportion equation
75,623.68 : 104,248.78 = 48,396.75 : x - Step 2: Convert to fraction form
75,623.68/104,248.78 = 48,396.75/x - Step 3: Cross multiply
75,623.68x = 104,248.78 × 48,396.75 - Step 4: Simplify right side
75,623.68x = 5,045,302,143.47 - Step 5: Solve for x
x = 5,045,302,143.47/75,623.68 - Step 6: Final answer
x = 66,715.90
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1.5x scale
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.