Finding the Fourth Proportional to 75,509.13, 113,262.79 and 19,348.80
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Solution
The fourth proportional to 75,509.13, 113,262.79 and 19,348.80 is: 29,022.97
Step by Step Solution
- Step 1: Write the proportion equation
75,509.13 : 113,262.79 = 19,348.80 : x - Step 2: Convert to fraction form
75,509.13/113,262.79 = 19,348.80/x - Step 3: Cross multiply
75,509.13x = 113,262.79 × 19,348.80 - Step 4: Simplify right side
75,509.13x = 2,191,499,071.15 - Step 5: Solve for x
x = 2,191,499,071.15/75,509.13 - Step 6: Final answer
x = 29,022.97
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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.