Finding the Fourth Proportional to 79,449.31, 119,173.83 and 20,284.99
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Solution
The fourth proportional to 79,449.31, 119,173.83 and 20,284.99 is: 30,427.45
Step by Step Solution
- Step 1: Write the proportion equation
79,449.31 : 119,173.83 = 20,284.99 : x - Step 2: Convert to fraction form
79,449.31/119,173.83 = 20,284.99/x - Step 3: Cross multiply
79,449.31x = 119,173.83 × 20,284.99 - Step 4: Simplify right side
79,449.31x = 2,417,439,949.81 - Step 5: Solve for x
x = 2,417,439,949.81/79,449.31 - Step 6: Final answer
x = 30,427.45
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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.