Finding the Fourth Proportional to 75,089.48, 103,635.11 and 42,824.17
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Solution
The fourth proportional to 75,089.48, 103,635.11 and 42,824.17 is: 59,103.99
Step by Step Solution
- Step 1: Write the proportion equation
75,089.48 : 103,635.11 = 42,824.17 : x - Step 2: Convert to fraction form
75,089.48/103,635.11 = 42,824.17/x - Step 3: Cross multiply
75,089.48x = 103,635.11 × 42,824.17 - Step 4: Simplify right side
75,089.48x = 4,438,087,568.61 - Step 5: Solve for x
x = 4,438,087,568.61/75,089.48 - Step 6: Final answer
x = 59,103.99
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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.