Finding the Fourth Proportional to 75,929.80, 113,894.70 and 33,809.80
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Solution
The fourth proportional to 75,929.80, 113,894.70 and 33,809.80 is: 50,714.70
Step by Step Solution
- Step 1: Write the proportion equation
75,929.80 : 113,894.70 = 33,809.80 : x - Step 2: Convert to fraction form
75,929.80/113,894.70 = 33,809.80/x - Step 3: Cross multiply
75,929.80x = 113,894.70 × 33,809.80 - Step 4: Simplify right side
75,929.80x = 3,850,757,028.06 - Step 5: Solve for x
x = 3,850,757,028.06/75,929.80 - Step 6: Final answer
x = 50,714.70
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1.5x scale
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.