Finding the Fourth Proportional to 67,639.85, 101,430.91 and 23,271.09
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Solution
The fourth proportional to 67,639.85, 101,430.91 and 23,271.09 is: 34,896.70
Step by Step Solution
- Step 1: Write the proportion equation
67,639.85 : 101,430.91 = 23,271.09 : x - Step 2: Convert to fraction form
67,639.85/101,430.91 = 23,271.09/x - Step 3: Cross multiply
67,639.85x = 101,430.91 × 23,271.09 - Step 4: Simplify right side
67,639.85x = 2,360,407,835.39 - Step 5: Solve for x
x = 2,360,407,835.39/67,639.85 - Step 6: Final answer
x = 34,896.70
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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.