Finding the Fourth Proportional to 86,897.40, 130,348.37 and 27,732.99
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Solution
The fourth proportional to 86,897.40, 130,348.37 and 27,732.99 is: 41,600.21
Step by Step Solution
- Step 1: Write the proportion equation
86,897.40 : 130,348.37 = 27,732.99 : x - Step 2: Convert to fraction form
86,897.40/130,348.37 = 27,732.99/x - Step 3: Cross multiply
86,897.40x = 130,348.37 × 27,732.99 - Step 4: Simplify right side
86,897.40x = 3,614,949,903.06 - Step 5: Solve for x
x = 3,614,949,903.06/86,897.40 - Step 6: Final answer
x = 41,600.21
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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.