Finding the Fourth Proportional to 74,125.16, 102,292.78 and 40,133.66
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Solution
The fourth proportional to 74,125.16, 102,292.78 and 40,133.66 is: 55,384.48
Step by Step Solution
- Step 1: Write the proportion equation
74,125.16 : 102,292.78 = 40,133.66 : x - Step 2: Convert to fraction form
74,125.16/102,292.78 = 40,133.66/x - Step 3: Cross multiply
74,125.16x = 102,292.78 × 40,133.66 - Step 4: Simplify right side
74,125.16x = 4,105,383,652.97 - Step 5: Solve for x
x = 4,105,383,652.97/74,125.16 - Step 6: Final answer
x = 55,384.48
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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.