Finding the Fourth Proportional to 98,427.89, 147,665.21 and 31,867.99
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Solution
The fourth proportional to 98,427.89, 147,665.21 and 31,867.99 is: 47,809.55
Step by Step Solution
- Step 1: Write the proportion equation
98,427.89 : 147,665.21 = 31,867.99 : x - Step 2: Convert to fraction form
98,427.89/147,665.21 = 31,867.99/x - Step 3: Cross multiply
98,427.89x = 147,665.21 × 31,867.99 - Step 4: Simplify right side
98,427.89x = 4,705,793,435.63 - Step 5: Solve for x
x = 4,705,793,435.63/98,427.89 - Step 6: Final answer
x = 47,809.55
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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.