Finding the Fourth Proportional to 98,428.85, 147,666.73 and 31,868.99
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Solution
The fourth proportional to 98,428.85, 147,666.73 and 31,868.99 is: 47,811.09
Step by Step Solution
- Step 1: Write the proportion equation
98,428.85 : 147,666.73 = 31,868.99 : x - Step 2: Convert to fraction form
98,428.85/147,666.73 = 31,868.99/x - Step 3: Cross multiply
98,428.85x = 147,666.73 × 31,868.99 - Step 4: Simplify right side
98,428.85x = 4,705,989,950.71 - Step 5: Solve for x
x = 4,705,989,950.71/98,428.85 - Step 6: Final answer
x = 47,811.09
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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.