Finding the Fourth Proportional to 80,129.36, 110,455.80 and 59,955.68
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Solution
The fourth proportional to 80,129.36, 110,455.80 and 59,955.68 is: 82,647.02
Step by Step Solution
- Step 1: Write the proportion equation
80,129.36 : 110,455.80 = 59,955.68 : x - Step 2: Convert to fraction form
80,129.36/110,455.80 = 59,955.68/x - Step 3: Cross multiply
80,129.36x = 110,455.80 × 59,955.68 - Step 4: Simplify right side
80,129.36x = 6,622,452,598.94 - Step 5: Solve for x
x = 6,622,452,598.94/80,129.36 - Step 6: Final answer
x = 82,647.02
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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.