Finding the Fourth Proportional to 100,579.69, 150,869.52 and 25,699.99
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Solution
The fourth proportional to 100,579.69, 150,869.52 and 25,699.99 is: 38,549.98
Step by Step Solution
- Step 1: Write the proportion equation
100,579.69 : 150,869.52 = 25,699.99 : x - Step 2: Convert to fraction form
100,579.69/150,869.52 = 25,699.99/x - Step 3: Cross multiply
100,579.69x = 150,869.52 × 25,699.99 - Step 4: Simplify right side
100,579.69x = 3,877,345,155.30 - Step 5: Solve for x
x = 3,877,345,155.30/100,579.69 - Step 6: Final answer
x = 38,549.98
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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.