Finding the Fourth Proportional to 86,176.23, 129,264.35 and 27,012.21
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Solution
The fourth proportional to 86,176.23, 129,264.35 and 27,012.21 is: 40,518.32
Step by Step Solution
- Step 1: Write the proportion equation
86,176.23 : 129,264.35 = 27,012.21 : x - Step 2: Convert to fraction form
86,176.23/129,264.35 = 27,012.21/x - Step 3: Cross multiply
86,176.23x = 129,264.35 × 27,012.21 - Step 4: Simplify right side
86,176.23x = 3,491,715,632.65 - Step 5: Solve for x
x = 3,491,715,632.65/86,176.23 - Step 6: Final answer
x = 40,518.32
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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.