Finding the Fourth Proportional to 74,260.45, 102,469.98 and 42,431.41
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Solution
The fourth proportional to 74,260.45, 102,469.98 and 42,431.41 is: 58,549.95
Step by Step Solution
- Step 1: Write the proportion equation
74,260.45 : 102,469.98 = 42,431.41 : x - Step 2: Convert to fraction form
74,260.45/102,469.98 = 42,431.41/x - Step 3: Cross multiply
74,260.45x = 102,469.98 × 42,431.41 - Step 4: Simplify right side
74,260.45x = 4,347,945,734.07 - Step 5: Solve for x
x = 4,347,945,734.07/74,260.45 - Step 6: Final answer
x = 58,549.95
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1.5x scale
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.