Finding the Fourth Proportional to 86,398.17, 119,244.74 and 68,628.80
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Solution
The fourth proportional to 86,398.17, 119,244.74 and 68,628.80 is: 94,719.86
Step by Step Solution
- Step 1: Write the proportion equation
86,398.17 : 119,244.74 = 68,628.80 : x - Step 2: Convert to fraction form
86,398.17/119,244.74 = 68,628.80/x - Step 3: Cross multiply
86,398.17x = 119,244.74 × 68,628.80 - Step 4: Simplify right side
86,398.17x = 8,183,622,473.14 - Step 5: Solve for x
x = 8,183,622,473.14/86,398.17 - Step 6: Final answer
x = 94,719.86
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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.