Finding the Fourth Proportional to 70,882.13, 106,343.96 and 20,963.53
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Solution
The fourth proportional to 70,882.13, 106,343.96 and 20,963.53 is: 31,451.43
Step by Step Solution
- Step 1: Write the proportion equation
70,882.13 : 106,343.96 = 20,963.53 : x - Step 2: Convert to fraction form
70,882.13/106,343.96 = 20,963.53/x - Step 3: Cross multiply
70,882.13x = 106,343.96 × 20,963.53 - Step 4: Simplify right side
70,882.13x = 2,229,344,159.24 - Step 5: Solve for x
x = 2,229,344,159.24/70,882.13 - Step 6: Final answer
x = 31,451.43
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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.