Finding the Fourth Proportional to 85,948.08, 118,615.85 and 50,149.62
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Solution
The fourth proportional to 85,948.08, 118,615.85 and 50,149.62 is: 69,210.86
Step by Step Solution
- Step 1: Write the proportion equation
85,948.08 : 118,615.85 = 50,149.62 : x - Step 2: Convert to fraction form
85,948.08/118,615.85 = 50,149.62/x - Step 3: Cross multiply
85,948.08x = 118,615.85 × 50,149.62 - Step 4: Simplify right side
85,948.08x = 5,948,540,289.13 - Step 5: Solve for x
x = 5,948,540,289.13/85,948.08 - Step 6: Final answer
x = 69,210.86
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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.