Finding the Fourth Proportional to 74,400.75, 102,679.92 and 40,873.23
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Solution
The fourth proportional to 74,400.75, 102,679.92 and 40,873.23 is: 56,408.84
Step by Step Solution
- Step 1: Write the proportion equation
74,400.75 : 102,679.92 = 40,873.23 : x - Step 2: Convert to fraction form
74,400.75/102,679.92 = 40,873.23/x - Step 3: Cross multiply
74,400.75x = 102,679.92 × 40,873.23 - Step 4: Simplify right side
74,400.75x = 4,196,859,986.54 - Step 5: Solve for x
x = 4,196,859,986.54/74,400.75 - Step 6: Final answer
x = 56,408.84
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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.