Finding the Fourth Proportional to 85,585.15, 128,370.39 and 33,598.99
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Solution
The fourth proportional to 85,585.15, 128,370.39 and 33,598.99 is: 50,395.61
Step by Step Solution
- Step 1: Write the proportion equation
85,585.15 : 128,370.39 = 33,598.99 : x - Step 2: Convert to fraction form
85,585.15/128,370.39 = 33,598.99/x - Step 3: Cross multiply
85,585.15x = 128,370.39 × 33,598.99 - Step 4: Simplify right side
85,585.15x = 4,313,115,449.91 - Step 5: Solve for x
x = 4,313,115,449.91/85,585.15 - Step 6: Final answer
x = 50,395.61
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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.