Finding the Fourth Proportional to 84,780.29, 117,008.99 and 50,790.23
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Solution
The fourth proportional to 84,780.29, 117,008.99 and 50,790.23 is: 70,097.82
Step by Step Solution
- Step 1: Write the proportion equation
84,780.29 : 117,008.99 = 50,790.23 : x - Step 2: Convert to fraction form
84,780.29/117,008.99 = 50,790.23/x - Step 3: Cross multiply
84,780.29x = 117,008.99 × 50,790.23 - Step 4: Simplify right side
84,780.29x = 5,942,913,514.17 - Step 5: Solve for x
x = 5,942,913,514.17/84,780.29 - Step 6: Final answer
x = 70,097.82
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1.5x scale
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.