Finding the Fourth Proportional to 75,154.38, 103,663.20 and 48,330.84
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Solution
The fourth proportional to 75,154.38, 103,663.20 and 48,330.84 is: 66,664.50
Step by Step Solution
- Step 1: Write the proportion equation
75,154.38 : 103,663.20 = 48,330.84 : x - Step 2: Convert to fraction form
75,154.38/103,663.20 = 48,330.84/x - Step 3: Cross multiply
75,154.38x = 103,663.20 × 48,330.84 - Step 4: Simplify right side
75,154.38x = 5,010,129,533.09 - Step 5: Solve for x
x = 5,010,129,533.09/75,154.38 - Step 6: Final answer
x = 66,664.50
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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.