Finding the Fourth Proportional to 74,189.09, 102,416.42 and 42,351.84
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Solution
The fourth proportional to 74,189.09, 102,416.42 and 42,351.84 is: 58,465.79
Step by Step Solution
- Step 1: Write the proportion equation
74,189.09 : 102,416.42 = 42,351.84 : x - Step 2: Convert to fraction form
74,189.09/102,416.42 = 42,351.84/x - Step 3: Cross multiply
74,189.09x = 102,416.42 × 42,351.84 - Step 4: Simplify right side
74,189.09x = 4,337,523,939.09 - Step 5: Solve for x
x = 4,337,523,939.09/74,189.09 - Step 6: Final answer
x = 58,465.79
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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.