Finding the Fourth Proportional to 83,739.24, 115,440.66 and 59,857.20
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Solution
The fourth proportional to 83,739.24, 115,440.66 and 59,857.20 is: 82,517.52
Step by Step Solution
- Step 1: Write the proportion equation
83,739.24 : 115,440.66 = 59,857.20 : x - Step 2: Convert to fraction form
83,739.24/115,440.66 = 59,857.20/x - Step 3: Cross multiply
83,739.24x = 115,440.66 × 59,857.20 - Step 4: Simplify right side
83,739.24x = 6,909,954,673.75 - Step 5: Solve for x
x = 6,909,954,673.75/83,739.24 - Step 6: Final answer
x = 82,517.52
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1.5x scale
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.