Finding the Fourth Proportional to 74,125.13, 102,291.44 and 40,133.34
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Solution
The fourth proportional to 74,125.13, 102,291.44 and 40,133.34 is: 55,383.34
Step by Step Solution
- Step 1: Write the proportion equation
74,125.13 : 102,291.44 = 40,133.34 : x - Step 2: Convert to fraction form
74,125.13/102,291.44 = 40,133.34/x - Step 3: Cross multiply
74,125.13x = 102,291.44 × 40,133.34 - Step 4: Simplify right side
74,125.13x = 4,105,297,240.94 - Step 5: Solve for x
x = 4,105,297,240.94/74,125.13 - Step 6: Final answer
x = 55,383.34
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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.