Finding the Fourth Proportional to 79,947.20, 119,996.15 and 58,822.84
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Solution
The fourth proportional to 79,947.20, 119,996.15 and 58,822.84 is: 88,289.70
Step by Step Solution
- Step 1: Write the proportion equation
79,947.20 : 119,996.15 = 58,822.84 : x - Step 2: Convert to fraction form
79,947.20/119,996.15 = 58,822.84/x - Step 3: Cross multiply
79,947.20x = 119,996.15 × 58,822.84 - Step 4: Simplify right side
79,947.20x = 7,058,514,179.13 - Step 5: Solve for x
x = 7,058,514,179.13/79,947.20 - Step 6: Final answer
x = 88,289.70
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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.