Finding the Fourth Proportional to 75,397.62, 113,078.80 and 22,077.74
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Solution
The fourth proportional to 75,397.62, 113,078.80 and 22,077.74 is: 33,111.45
Step by Step Solution
- Step 1: Write the proportion equation
75,397.62 : 113,078.80 = 22,077.74 : x - Step 2: Convert to fraction form
75,397.62/113,078.80 = 22,077.74/x - Step 3: Cross multiply
75,397.62x = 113,078.80 × 22,077.74 - Step 4: Simplify right side
75,397.62x = 2,496,524,345.91 - Step 5: Solve for x
x = 2,496,524,345.91/75,397.62 - Step 6: Final answer
x = 33,111.45
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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.