Finding the Fourth Proportional to 54,306.05, 74,938.57 and 30,106.82
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Solution
The fourth proportional to 54,306.05, 74,938.57 and 30,106.82 is: 41,545.32
Step by Step Solution
- Step 1: Write the proportion equation
54,306.05 : 74,938.57 = 30,106.82 : x - Step 2: Convert to fraction form
54,306.05/74,938.57 = 30,106.82/x - Step 3: Cross multiply
54,306.05x = 74,938.57 × 30,106.82 - Step 4: Simplify right side
54,306.05x = 2,256,162,150.13 - Step 5: Solve for x
x = 2,256,162,150.13/54,306.05 - Step 6: Final answer
x = 41,545.32
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.