Finding the Fourth Proportional to 94,989.71, 142,491.99 and 31,810.07
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Solution
The fourth proportional to 94,989.71, 142,491.99 and 31,810.07 is: 47,717.59
Step by Step Solution
- Step 1: Write the proportion equation
94,989.71 : 142,491.99 = 31,810.07 : x - Step 2: Convert to fraction form
94,989.71/142,491.99 = 31,810.07/x - Step 3: Cross multiply
94,989.71x = 142,491.99 × 31,810.07 - Step 4: Simplify right side
94,989.71x = 4,532,680,176.34 - Step 5: Solve for x
x = 4,532,680,176.34/94,989.71 - Step 6: Final answer
x = 47,717.59
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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.