Finding the Fourth Proportional to 83,612.80, 125,431.44 and 39,244.06
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Solution
The fourth proportional to 83,612.80, 125,431.44 and 39,244.06 is: 58,871.83
Step by Step Solution
- Step 1: Write the proportion equation
83,612.80 : 125,431.44 = 39,244.06 : x - Step 2: Convert to fraction form
83,612.80/125,431.44 = 39,244.06/x - Step 3: Cross multiply
83,612.80x = 125,431.44 × 39,244.06 - Step 4: Simplify right side
83,612.80x = 4,922,438,957.25 - Step 5: Solve for x
x = 4,922,438,957.25/83,612.80 - Step 6: Final answer
x = 58,871.83
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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.