Finding the Fourth Proportional to 85,292.93, 127,955.79 and 26,129.12
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Solution
The fourth proportional to 85,292.93, 127,955.79 and 26,129.12 is: 39,198.70
Step by Step Solution
- Step 1: Write the proportion equation
85,292.93 : 127,955.79 = 26,129.12 : x - Step 2: Convert to fraction form
85,292.93/127,955.79 = 26,129.12/x - Step 3: Cross multiply
85,292.93x = 127,955.79 × 26,129.12 - Step 4: Simplify right side
85,292.93x = 3,343,371,551.83 - Step 5: Solve for x
x = 3,343,371,551.83/85,292.93 - Step 6: Final answer
x = 39,198.70
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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.