Finding the Fourth Proportional to 86,750.80, 130,129.80 and 27,584.80
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Solution
The fourth proportional to 86,750.80, 130,129.80 and 27,584.80 is: 41,378.34
Step by Step Solution
- Step 1: Write the proportion equation
86,750.80 : 130,129.80 = 27,584.80 : x - Step 2: Convert to fraction form
86,750.80/130,129.80 = 27,584.80/x - Step 3: Cross multiply
86,750.80x = 130,129.80 × 27,584.80 - Step 4: Simplify right side
86,750.80x = 3,589,604,507.04 - Step 5: Solve for x
x = 3,589,604,507.04/86,750.80 - Step 6: Final answer
x = 41,378.34
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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.