Finding the Fourth Proportional to 85,513.40, 128,284.14 and 26,349.08
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Solution
The fourth proportional to 85,513.40, 128,284.14 and 26,349.08 is: 39,527.95
Step by Step Solution
- Step 1: Write the proportion equation
85,513.40 : 128,284.14 = 26,349.08 : x - Step 2: Convert to fraction form
85,513.40/128,284.14 = 26,349.08/x - Step 3: Cross multiply
85,513.40x = 128,284.14 × 26,349.08 - Step 4: Simplify right side
85,513.40x = 3,380,169,067.59 - Step 5: Solve for x
x = 3,380,169,067.59/85,513.40 - Step 6: Final answer
x = 39,527.95
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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.