Finding the Fourth Proportional to 79,809.36, 110,149.92 and 48,010.40
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Solution
The fourth proportional to 79,809.36, 110,149.92 and 48,010.40 is: 66,262.17
Step by Step Solution
- Step 1: Write the proportion equation
79,809.36 : 110,149.92 = 48,010.40 : x - Step 2: Convert to fraction form
79,809.36/110,149.92 = 48,010.40/x - Step 3: Cross multiply
79,809.36x = 110,149.92 × 48,010.40 - Step 4: Simplify right side
79,809.36x = 5,288,341,719.17 - Step 5: Solve for x
x = 5,288,341,719.17/79,809.36 - Step 6: Final answer
x = 66,262.17
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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.