Finding the Fourth Proportional to 85,664.17, 128,486.97 and 22,490.63
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Solution
The fourth proportional to 85,664.17, 128,486.97 and 22,490.63 is: 33,733.51
Step by Step Solution
- Step 1: Write the proportion equation
85,664.17 : 128,486.97 = 22,490.63 : x - Step 2: Convert to fraction form
85,664.17/128,486.97 = 22,490.63/x - Step 3: Cross multiply
85,664.17x = 128,486.97 × 22,490.63 - Step 4: Simplify right side
85,664.17x = 2,889,752,902.09 - Step 5: Solve for x
x = 2,889,752,902.09/85,664.17 - Step 6: Final answer
x = 33,733.51
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1.5x scale
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.