Finding the Fourth Proportional to 85,371.57, 127,953.68 and 60,418.91
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Solution
The fourth proportional to 85,371.57, 127,953.68 and 60,418.91 is: 90,554.99
Step by Step Solution
- Step 1: Write the proportion equation
85,371.57 : 127,953.68 = 60,418.91 : x - Step 2: Convert to fraction form
85,371.57/127,953.68 = 60,418.91/x - Step 3: Cross multiply
85,371.57x = 127,953.68 × 60,418.91 - Step 4: Simplify right side
85,371.57x = 7,730,821,893.88 - Step 5: Solve for x
x = 7,730,821,893.88/85,371.57 - Step 6: Final answer
x = 90,554.99
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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.