Finding the Fourth Proportional to 98,520.76, 147,802.74 and 31,967.62
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Solution
The fourth proportional to 98,520.76, 147,802.74 and 31,967.62 is: 47,958.44
Step by Step Solution
- Step 1: Write the proportion equation
98,520.76 : 147,802.74 = 31,967.62 : x - Step 2: Convert to fraction form
98,520.76/147,802.74 = 31,967.62/x - Step 3: Cross multiply
98,520.76x = 147,802.74 × 31,967.62 - Step 4: Simplify right side
98,520.76x = 4,724,901,827.28 - Step 5: Solve for x
x = 4,724,901,827.28/98,520.76 - Step 6: Final answer
x = 47,958.44
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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.