Finding the Fourth Proportional to 84,047.20, 115,996.80 and 48,248.44
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Solution
The fourth proportional to 84,047.20, 115,996.80 and 48,248.44 is: 66,589.54
Step by Step Solution
- Step 1: Write the proportion equation
84,047.20 : 115,996.80 = 48,248.44 : x - Step 2: Convert to fraction form
84,047.20/115,996.80 = 48,248.44/x - Step 3: Cross multiply
84,047.20x = 115,996.80 × 48,248.44 - Step 4: Simplify right side
84,047.20x = 5,596,664,644.99 - Step 5: Solve for x
x = 5,596,664,644.99/84,047.20 - Step 6: Final answer
x = 66,589.54
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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.