Finding the Fourth Proportional to 74,524.24, 102,935.74 and 54,073.49
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Solution
The fourth proportional to 74,524.24, 102,935.74 and 54,073.49 is: 74,688.38
Step by Step Solution
- Step 1: Write the proportion equation
74,524.24 : 102,935.74 = 54,073.49 : x - Step 2: Convert to fraction form
74,524.24/102,935.74 = 54,073.49/x - Step 3: Cross multiply
74,524.24x = 102,935.74 × 54,073.49 - Step 4: Simplify right side
74,524.24x = 5,566,094,361.83 - Step 5: Solve for x
x = 5,566,094,361.83/74,524.24 - Step 6: Final answer
x = 74,688.38
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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.