Finding the Fourth Proportional to 98,520.14, 147,800.98 and 31,955.09
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Solution
The fourth proportional to 98,520.14, 147,800.98 and 31,955.09 is: 47,939.37
Step by Step Solution
- Step 1: Write the proportion equation
98,520.14 : 147,800.98 = 31,955.09 : x - Step 2: Convert to fraction form
98,520.14/147,800.98 = 31,955.09/x - Step 3: Cross multiply
98,520.14x = 147,800.98 × 31,955.09 - Step 4: Simplify right side
98,520.14x = 4,722,993,617.99 - Step 5: Solve for x
x = 4,722,993,617.99/98,520.14 - Step 6: Final answer
x = 47,939.37
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.