Finding the Fourth Proportional to 84,722.97, 126,995.79 and 28,543.67
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Solution
The fourth proportional to 84,722.97, 126,995.79 and 28,543.67 is: 42,785.63
Step by Step Solution
- Step 1: Write the proportion equation
84,722.97 : 126,995.79 = 28,543.67 : x - Step 2: Convert to fraction form
84,722.97/126,995.79 = 28,543.67/x - Step 3: Cross multiply
84,722.97x = 126,995.79 × 28,543.67 - Step 4: Simplify right side
84,722.97x = 3,624,925,921.15 - Step 5: Solve for x
x = 3,624,925,921.15/84,722.97 - Step 6: Final answer
x = 42,785.63
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.