Finding the Fourth Proportional to 81,284.58, 121,948.79 and 33,883.92
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Solution
The fourth proportional to 81,284.58, 121,948.79 and 33,883.92 is: 50,835.02
Step by Step Solution
- Step 1: Write the proportion equation
81,284.58 : 121,948.79 = 33,883.92 : x - Step 2: Convert to fraction form
81,284.58/121,948.79 = 33,883.92/x - Step 3: Cross multiply
81,284.58x = 121,948.79 × 33,883.92 - Step 4: Simplify right side
81,284.58x = 4,132,102,875.04 - Step 5: Solve for x
x = 4,132,102,875.04/81,284.58 - Step 6: Final answer
x = 50,835.02
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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.