Finding the Fourth Proportional to 87,259.19, 120,414.47 and 53,324.46
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Solution
The fourth proportional to 87,259.19, 120,414.47 and 53,324.46 is: 73,585.79
Step by Step Solution
- Step 1: Write the proportion equation
87,259.19 : 120,414.47 = 53,324.46 : x - Step 2: Convert to fraction form
87,259.19/120,414.47 = 53,324.46/x - Step 3: Cross multiply
87,259.19x = 120,414.47 × 53,324.46 - Step 4: Simplify right side
87,259.19x = 6,421,036,322.31 - Step 5: Solve for x
x = 6,421,036,322.31/87,259.19 - Step 6: Final answer
x = 73,585.79
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.