Finding the Fourth Proportional to 86,739.80, 130,113.30 and 27,573.80
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Solution
The fourth proportional to 86,739.80, 130,113.30 and 27,573.80 is: 41,361.84
Step by Step Solution
- Step 1: Write the proportion equation
86,739.80 : 130,113.30 = 27,573.80 : x - Step 2: Convert to fraction form
86,739.80/130,113.30 = 27,573.80/x - Step 3: Cross multiply
86,739.80x = 130,113.30 × 27,573.80 - Step 4: Simplify right side
86,739.80x = 3,587,718,111.54 - Step 5: Solve for x
x = 3,587,718,111.54/86,739.80 - Step 6: Final answer
x = 41,361.84
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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.