Finding the Fourth Proportional to 84,631.05, 116,803.28 and 48,814.07
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Solution
The fourth proportional to 84,631.05, 116,803.28 and 48,814.07 is: 67,370.58
Step by Step Solution
- Step 1: Write the proportion equation
84,631.05 : 116,803.28 = 48,814.07 : x - Step 2: Convert to fraction form
84,631.05/116,803.28 = 48,814.07/x - Step 3: Cross multiply
84,631.05x = 116,803.28 × 48,814.07 - Step 4: Simplify right side
84,631.05x = 5,701,643,024.17 - Step 5: Solve for x
x = 5,701,643,024.17/84,631.05 - Step 6: Final answer
x = 67,370.58
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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.