Finding the Fourth Proportional to 74,193.84, 102,390.12 and 40,659.84
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Solution
The fourth proportional to 74,193.84, 102,390.12 and 40,659.84 is: 56,112.02
Step by Step Solution
- Step 1: Write the proportion equation
74,193.84 : 102,390.12 = 40,659.84 : x - Step 2: Convert to fraction form
74,193.84/102,390.12 = 40,659.84/x - Step 3: Cross multiply
74,193.84x = 102,390.12 × 40,659.84 - Step 4: Simplify right side
74,193.84x = 4,163,165,896.78 - Step 5: Solve for x
x = 4,163,165,896.78/74,193.84 - Step 6: Final answer
x = 56,112.02
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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.