Finding the Fourth Proportional to 81,202.99, 121,814.39 and 34,440.07
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Solution
The fourth proportional to 81,202.99, 121,814.39 and 34,440.07 is: 51,664.30
Step by Step Solution
- Step 1: Write the proportion equation
81,202.99 : 121,814.39 = 34,440.07 : x - Step 2: Convert to fraction form
81,202.99/121,814.39 = 34,440.07/x - Step 3: Cross multiply
81,202.99x = 121,814.39 × 34,440.07 - Step 4: Simplify right side
81,202.99x = 4,195,295,946.41 - Step 5: Solve for x
x = 4,195,295,946.41/81,202.99 - Step 6: Final answer
x = 51,664.30
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1.5x scale
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.