Finding the Fourth Proportional to 85,652.91, 128,482.97 and 26,489.70
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Solution
The fourth proportional to 85,652.91, 128,482.97 and 26,489.70 is: 39,735.66
Step by Step Solution
- Step 1: Write the proportion equation
85,652.91 : 128,482.97 = 26,489.70 : x - Step 2: Convert to fraction form
85,652.91/128,482.97 = 26,489.70/x - Step 3: Cross multiply
85,652.91x = 128,482.97 × 26,489.70 - Step 4: Simplify right side
85,652.91x = 3,403,475,197.96 - Step 5: Solve for x
x = 3,403,475,197.96/85,652.91 - Step 6: Final answer
x = 39,735.66
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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.