Finding the Fourth Proportional to 85,656.26, 128,484.39 and 29,497.75
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Solution
The fourth proportional to 85,656.26, 128,484.39 and 29,497.75 is: 44,246.63
Step by Step Solution
- Step 1: Write the proportion equation
85,656.26 : 128,484.39 = 29,497.75 : x - Step 2: Convert to fraction form
85,656.26/128,484.39 = 29,497.75/x - Step 3: Cross multiply
85,656.26x = 128,484.39 × 29,497.75 - Step 4: Simplify right side
85,656.26x = 3,790,000,415.12 - Step 5: Solve for x
x = 3,790,000,415.12/85,656.26 - Step 6: Final answer
x = 44,246.63
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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.