Finding the Fourth Proportional to 75,805.72, 113,708.99 and 19,641.94
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Solution
The fourth proportional to 75,805.72, 113,708.99 and 19,641.94 is: 29,463.02
Step by Step Solution
- Step 1: Write the proportion equation
75,805.72 : 113,708.99 = 19,641.94 : x - Step 2: Convert to fraction form
75,805.72/113,708.99 = 19,641.94/x - Step 3: Cross multiply
75,805.72x = 113,708.99 × 19,641.94 - Step 4: Simplify right side
75,805.72x = 2,233,465,159.04 - Step 5: Solve for x
x = 2,233,465,159.04/75,805.72 - Step 6: Final answer
x = 29,463.02
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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.