Finding the Fourth Proportional to 88,724.70, 122,459.85 and 56,453.09
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Solution
The fourth proportional to 88,724.70, 122,459.85 and 56,453.09 is: 77,917.83
Step by Step Solution
- Step 1: Write the proportion equation
88,724.70 : 122,459.85 = 56,453.09 : x - Step 2: Convert to fraction form
88,724.70/122,459.85 = 56,453.09/x - Step 3: Cross multiply
88,724.70x = 122,459.85 × 56,453.09 - Step 4: Simplify right side
88,724.70x = 6,913,236,321.14 - Step 5: Solve for x
x = 6,913,236,321.14/88,724.70 - Step 6: Final answer
x = 77,917.83
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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.