Finding the Fourth Proportional to 84,031.17, 115,961.51 and 45,790.99
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Solution
The fourth proportional to 84,031.17, 115,961.51 and 45,790.99 is: 63,190.75
Step by Step Solution
- Step 1: Write the proportion equation
84,031.17 : 115,961.51 = 45,790.99 : x - Step 2: Convert to fraction form
84,031.17/115,961.51 = 45,790.99/x - Step 3: Cross multiply
84,031.17x = 115,961.51 × 45,790.99 - Step 4: Simplify right side
84,031.17x = 5,309,992,169.37 - Step 5: Solve for x
x = 5,309,992,169.37/84,031.17 - Step 6: Final answer
x = 63,190.75
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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.