Finding the Fourth Proportional to 84,720.14, 116,927.81 and 47,006.54
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Solution
The fourth proportional to 84,720.14, 116,927.81 and 47,006.54 is: 64,876.80
Step by Step Solution
- Step 1: Write the proportion equation
84,720.14 : 116,927.81 = 47,006.54 : x - Step 2: Convert to fraction form
84,720.14/116,927.81 = 47,006.54/x - Step 3: Cross multiply
84,720.14x = 116,927.81 × 47,006.54 - Step 4: Simplify right side
84,720.14x = 5,496,371,777.88 - Step 5: Solve for x
x = 5,496,371,777.88/84,720.14 - Step 6: Final answer
x = 64,876.80
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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.