Finding the Fourth Proportional to 81,214.81, 121,808.24 and 22,055.24
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Solution
The fourth proportional to 81,214.81, 121,808.24 and 22,055.24 is: 33,079.07
Step by Step Solution
- Step 1: Write the proportion equation
81,214.81 : 121,808.24 = 22,055.24 : x - Step 2: Convert to fraction form
81,214.81/121,808.24 = 22,055.24/x - Step 3: Cross multiply
81,214.81x = 121,808.24 × 22,055.24 - Step 4: Simplify right side
81,214.81x = 2,686,510,244.13 - Step 5: Solve for x
x = 2,686,510,244.13/81,214.81 - Step 6: Final answer
x = 33,079.07
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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.