Finding the Fourth Proportional to 74,781.12, 103,193.28 and 41,247.84
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Solution
The fourth proportional to 74,781.12, 103,193.28 and 41,247.84 is: 56,919.45
Step by Step Solution
- Step 1: Write the proportion equation
74,781.12 : 103,193.28 = 41,247.84 : x - Step 2: Convert to fraction form
74,781.12/103,193.28 = 41,247.84/x - Step 3: Cross multiply
74,781.12x = 103,193.28 × 41,247.84 - Step 4: Simplify right side
74,781.12x = 4,256,499,902.52 - Step 5: Solve for x
x = 4,256,499,902.52/74,781.12 - Step 6: Final answer
x = 56,919.45
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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.