Finding the Fourth Proportional to 89,128.25, 133,689.64 and 36,498.09
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Solution
The fourth proportional to 89,128.25, 133,689.64 and 36,498.09 is: 54,746.02
Step by Step Solution
- Step 1: Write the proportion equation
89,128.25 : 133,689.64 = 36,498.09 : x - Step 2: Convert to fraction form
89,128.25/133,689.64 = 36,498.09/x - Step 3: Cross multiply
89,128.25x = 133,689.64 × 36,498.09 - Step 4: Simplify right side
89,128.25x = 4,879,416,991.31 - Step 5: Solve for x
x = 4,879,416,991.31/89,128.25 - Step 6: Final answer
x = 54,746.02
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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.