Finding the Fourth Proportional to 76,882.14, 106,089.27 and 45,045.09
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Solution
The fourth proportional to 76,882.14, 106,089.27 and 45,045.09 is: 62,157.49
Step by Step Solution
- Step 1: Write the proportion equation
76,882.14 : 106,089.27 = 45,045.09 : x - Step 2: Convert to fraction form
76,882.14/106,089.27 = 45,045.09/x - Step 3: Cross multiply
76,882.14x = 106,089.27 × 45,045.09 - Step 4: Simplify right side
76,882.14x = 4,778,800,715.18 - Step 5: Solve for x
x = 4,778,800,715.18/76,882.14 - Step 6: Final answer
x = 62,157.49
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.