Finding the Fourth Proportional to 80,735.68, 111,430.66 and 53,463.70
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Solution
The fourth proportional to 80,735.68, 111,430.66 and 53,463.70 is: 73,790.12
Step by Step Solution
- Step 1: Write the proportion equation
80,735.68 : 111,430.66 = 53,463.70 : x - Step 2: Convert to fraction form
80,735.68/111,430.66 = 53,463.70/x - Step 3: Cross multiply
80,735.68x = 111,430.66 × 53,463.70 - Step 4: Simplify right side
80,735.68x = 5,957,495,377.04 - Step 5: Solve for x
x = 5,957,495,377.04/80,735.68 - Step 6: Final answer
x = 73,790.12
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.