Finding the Fourth Proportional to 79,888.64, 119,832.94 and 27,298.58
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Solution
The fourth proportional to 79,888.64, 119,832.94 and 27,298.58 is: 40,947.86
Step by Step Solution
- Step 1: Write the proportion equation
79,888.64 : 119,832.94 = 27,298.58 : x - Step 2: Convert to fraction form
79,888.64/119,832.94 = 27,298.58/x - Step 3: Cross multiply
79,888.64x = 119,832.94 × 27,298.58 - Step 4: Simplify right side
79,888.64x = 3,271,269,099.23 - Step 5: Solve for x
x = 3,271,269,099.23/79,888.64 - Step 6: Final answer
x = 40,947.86
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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.