Finding the Fourth Proportional to 86,565.17, 129,846.65 and 27,400.75
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Solution
The fourth proportional to 86,565.17, 129,846.65 and 27,400.75 is: 41,100.77
Step by Step Solution
- Step 1: Write the proportion equation
86,565.17 : 129,846.65 = 27,400.75 : x - Step 2: Convert to fraction form
86,565.17/129,846.65 = 27,400.75/x - Step 3: Cross multiply
86,565.17x = 129,846.65 × 27,400.75 - Step 4: Simplify right side
86,565.17x = 3,557,895,133.37 - Step 5: Solve for x
x = 3,557,895,133.37/86,565.17 - Step 6: Final answer
x = 41,100.77
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1.5x scale
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.