Finding the Fourth Proportional to 84,989.69, 117,310.49 and 56,695.31
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Solution
The fourth proportional to 84,989.69, 117,310.49 and 56,695.31 is: 78,256.02
Step by Step Solution
- Step 1: Write the proportion equation
84,989.69 : 117,310.49 = 56,695.31 : x - Step 2: Convert to fraction form
84,989.69/117,310.49 = 56,695.31/x - Step 3: Cross multiply
84,989.69x = 117,310.49 × 56,695.31 - Step 4: Simplify right side
84,989.69x = 6,650,954,698.21 - Step 5: Solve for x
x = 6,650,954,698.21/84,989.69 - Step 6: Final answer
x = 78,256.02
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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.