Finding the Fourth Proportional to 75,428.24, 104,079.41 and 43,590.99
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Solution
The fourth proportional to 75,428.24, 104,079.41 and 43,590.99 is: 60,148.89
Step by Step Solution
- Step 1: Write the proportion equation
75,428.24 : 104,079.41 = 43,590.99 : x - Step 2: Convert to fraction form
75,428.24/104,079.41 = 43,590.99/x - Step 3: Cross multiply
75,428.24x = 104,079.41 × 43,590.99 - Step 4: Simplify right side
75,428.24x = 4,536,924,302.56 - Step 5: Solve for x
x = 4,536,924,302.56/75,428.24 - Step 6: Final answer
x = 60,148.89
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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.