Finding the Fourth Proportional to 74,939.68, 112,432.05 and 22,349.12
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Solution
The fourth proportional to 74,939.68, 112,432.05 and 22,349.12 is: 33,530.39
Step by Step Solution
- Step 1: Write the proportion equation
74,939.68 : 112,432.05 = 22,349.12 : x - Step 2: Convert to fraction form
74,939.68/112,432.05 = 22,349.12/x - Step 3: Cross multiply
74,939.68x = 112,432.05 × 22,349.12 - Step 4: Simplify right side
74,939.68x = 2,512,756,815.14 - Step 5: Solve for x
x = 2,512,756,815.14/74,939.68 - Step 6: Final answer
x = 33,530.39
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.