Finding the Fourth Proportional to 81,006.84, 121,504.86 and 38,917.08
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Solution
The fourth proportional to 81,006.84, 121,504.86 and 38,917.08 is: 58,373.03
Step by Step Solution
- Step 1: Write the proportion equation
81,006.84 : 121,504.86 = 38,917.08 : x - Step 2: Convert to fraction form
81,006.84/121,504.86 = 38,917.08/x - Step 3: Cross multiply
81,006.84x = 121,504.86 × 38,917.08 - Step 4: Simplify right side
81,006.84x = 4,728,614,357.01 - Step 5: Solve for x
x = 4,728,614,357.01/81,006.84 - Step 6: Final answer
x = 58,373.03
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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.