Finding the Fourth Proportional to 71,683.92, 107,547.75 and 36,648.18
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Solution
The fourth proportional to 71,683.92, 107,547.75 and 36,648.18 is: 54,983.45
Step by Step Solution
- Step 1: Write the proportion equation
71,683.92 : 107,547.75 = 36,648.18 : x - Step 2: Convert to fraction form
71,683.92/107,547.75 = 36,648.18/x - Step 3: Cross multiply
71,683.92x = 107,547.75 × 36,648.18 - Step 4: Simplify right side
71,683.92x = 3,941,429,300.60 - Step 5: Solve for x
x = 3,941,429,300.60/71,683.92 - Step 6: Final answer
x = 54,983.45
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1.5x scale
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.