Finding the Fourth Proportional to 86,813.46, 130,218.84 and 27,648.63
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Solution
The fourth proportional to 86,813.46, 130,218.84 and 27,648.63 is: 41,472.52
Step by Step Solution
- Step 1: Write the proportion equation
86,813.46 : 130,218.84 = 27,648.63 : x - Step 2: Convert to fraction form
86,813.46/130,218.84 = 27,648.63/x - Step 3: Cross multiply
86,813.46x = 130,218.84 × 27,648.63 - Step 4: Simplify right side
86,813.46x = 3,600,372,526.19 - Step 5: Solve for x
x = 3,600,372,526.19/86,813.46 - Step 6: Final answer
x = 41,472.52
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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.