Finding the Fourth Proportional to 84,745.68, 127,126.00 and 31,438.26
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Solution
The fourth proportional to 84,745.68, 127,126.00 and 31,438.26 is: 47,160.17
Step by Step Solution
- Step 1: Write the proportion equation
84,745.68 : 127,126.00 = 31,438.26 : x - Step 2: Convert to fraction form
84,745.68/127,126.00 = 31,438.26/x - Step 3: Cross multiply
84,745.68x = 127,126.00 × 31,438.26 - Step 4: Simplify right side
84,745.68x = 3,996,620,280.06 - Step 5: Solve for x
x = 3,996,620,280.06/84,745.68 - Step 6: Final answer
x = 47,160.17
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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.