Finding the Fourth Proportional to 81,397.36, 122,079.57 and 22,228.08
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Solution
The fourth proportional to 81,397.36, 122,079.57 and 22,228.08 is: 33,337.62
Step by Step Solution
- Step 1: Write the proportion equation
81,397.36 : 122,079.57 = 22,228.08 : x - Step 2: Convert to fraction form
81,397.36/122,079.57 = 22,228.08/x - Step 3: Cross multiply
81,397.36x = 122,079.57 × 22,228.08 - Step 4: Simplify right side
81,397.36x = 2,713,594,448.33 - Step 5: Solve for x
x = 2,713,594,448.33/81,397.36 - Step 6: Final answer
x = 33,337.62
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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.