Finding the Fourth Proportional to 80,995.05, 121,484.37 and 21,836.70
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Solution
The fourth proportional to 80,995.05, 121,484.37 and 21,836.70 is: 32,752.84
Step by Step Solution
- Step 1: Write the proportion equation
80,995.05 : 121,484.37 = 21,836.70 : x - Step 2: Convert to fraction form
80,995.05/121,484.37 = 21,836.70/x - Step 3: Cross multiply
80,995.05x = 121,484.37 × 21,836.70 - Step 4: Simplify right side
80,995.05x = 2,652,817,742.38 - Step 5: Solve for x
x = 2,652,817,742.38/80,995.05 - Step 6: Final answer
x = 32,752.84
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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.