Finding the Fourth Proportional to 84,465.99, 126,696.56 and 21,285.99
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Solution
The fourth proportional to 84,465.99, 126,696.56 and 21,285.99 is: 31,928.37
Step by Step Solution
- Step 1: Write the proportion equation
84,465.99 : 126,696.56 = 21,285.99 : x - Step 2: Convert to fraction form
84,465.99/126,696.56 = 21,285.99/x - Step 3: Cross multiply
84,465.99x = 126,696.56 × 21,285.99 - Step 4: Simplify right side
84,465.99x = 2,696,861,602.76 - Step 5: Solve for x
x = 2,696,861,602.76/84,465.99 - Step 6: Final answer
x = 31,928.37
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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.