Finding the Fourth Proportional to 98,025.96, 135,306.66 and 55,612.68
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Solution
The fourth proportional to 98,025.96, 135,306.66 and 55,612.68 is: 76,762.99
Step by Step Solution
- Step 1: Write the proportion equation
98,025.96 : 135,306.66 = 55,612.68 : x - Step 2: Convert to fraction form
98,025.96/135,306.66 = 55,612.68/x - Step 3: Cross multiply
98,025.96x = 135,306.66 × 55,612.68 - Step 4: Simplify right side
98,025.96x = 7,524,765,984.45 - Step 5: Solve for x
x = 7,524,765,984.45/98,025.96 - Step 6: Final answer
x = 76,762.99
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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.