Finding the Fourth Proportional to 86,809.01, 130,177.88 and 27,628.79
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Solution
The fourth proportional to 86,809.01, 130,177.88 and 27,628.79 is: 41,431.84
Step by Step Solution
- Step 1: Write the proportion equation
86,809.01 : 130,177.88 = 27,628.79 : x - Step 2: Convert to fraction form
86,809.01/130,177.88 = 27,628.79/x - Step 3: Cross multiply
86,809.01x = 130,177.88 × 27,628.79 - Step 4: Simplify right side
86,809.01x = 3,596,657,171.02 - Step 5: Solve for x
x = 3,596,657,171.02/86,809.01 - Step 6: Final answer
x = 41,431.84
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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.