Finding the Fourth Proportional to 84,947.81, 117,228.26 and 46,709.75
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Solution
The fourth proportional to 84,947.81, 117,228.26 and 46,709.75 is: 64,459.62
Step by Step Solution
- Step 1: Write the proportion equation
84,947.81 : 117,228.26 = 46,709.75 : x - Step 2: Convert to fraction form
84,947.81/117,228.26 = 46,709.75/x - Step 3: Cross multiply
84,947.81x = 117,228.26 × 46,709.75 - Step 4: Simplify right side
84,947.81x = 5,475,703,127.38 - Step 5: Solve for x
x = 5,475,703,127.38/84,947.81 - Step 6: Final answer
x = 64,459.62
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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.