Finding the Fourth Proportional to 79,825.92, 119,739.84 and 38,263.68
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Solution
The fourth proportional to 79,825.92, 119,739.84 and 38,263.68 is: 57,395.98
Step by Step Solution
- Step 1: Write the proportion equation
79,825.92 : 119,739.84 = 38,263.68 : x - Step 2: Convert to fraction form
79,825.92/119,739.84 = 38,263.68/x - Step 3: Cross multiply
79,825.92x = 119,739.84 × 38,263.68 - Step 4: Simplify right side
79,825.92x = 4,581,686,921.01 - Step 5: Solve for x
x = 4,581,686,921.01/79,825.92 - Step 6: Final answer
x = 57,395.98
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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.