Finding the Fourth Proportional to 79,955.92, 120,033.24 and 51,783.76
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Solution
The fourth proportional to 79,955.92, 120,033.24 and 51,783.76 is: 77,739.99
Step by Step Solution
- Step 1: Write the proportion equation
79,955.92 : 120,033.24 = 51,783.76 : x - Step 2: Convert to fraction form
79,955.92/120,033.24 = 51,783.76/x - Step 3: Cross multiply
79,955.92x = 120,033.24 × 51,783.76 - Step 4: Simplify right side
79,955.92x = 6,215,772,492.18 - Step 5: Solve for x
x = 6,215,772,492.18/79,955.92 - Step 6: Final answer
x = 77,739.99
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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.