Finding the Fourth Proportional to 74,125.44, 102,293.12 and 40,133.92
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Solution
The fourth proportional to 74,125.44, 102,293.12 and 40,133.92 is: 55,384.82
Step by Step Solution
- Step 1: Write the proportion equation
74,125.44 : 102,293.12 = 40,133.92 : x - Step 2: Convert to fraction form
74,125.44/102,293.12 = 40,133.92/x - Step 3: Cross multiply
74,125.44x = 102,293.12 × 40,133.92 - Step 4: Simplify right side
74,125.44x = 4,105,423,894.63 - Step 5: Solve for x
x = 4,105,423,894.63/74,125.44 - Step 6: Final answer
x = 55,384.82
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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.