Finding the Fourth Proportional to 107,349.90, 161,028.49 and 28,472.10
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Solution
The fourth proportional to 107,349.90, 161,028.49 and 28,472.10 is: 42,709.12
Step by Step Solution
- Step 1: Write the proportion equation
107,349.90 : 161,028.49 = 28,472.10 : x - Step 2: Convert to fraction form
107,349.90/161,028.49 = 28,472.10/x - Step 3: Cross multiply
107,349.90x = 161,028.49 × 28,472.10 - Step 4: Simplify right side
107,349.90x = 4,584,819,270.13 - Step 5: Solve for x
x = 4,584,819,270.13/107,349.90 - Step 6: Final answer
x = 42,709.12
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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.