Finding the Fourth Proportional to 83,630.31, 125,445.48 and 36,915.99
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Solution
The fourth proportional to 83,630.31, 125,445.48 and 36,915.99 is: 55,373.99
Step by Step Solution
- Step 1: Write the proportion equation
83,630.31 : 125,445.48 = 36,915.99 : x - Step 2: Convert to fraction form
83,630.31/125,445.48 = 36,915.99/x - Step 3: Cross multiply
83,630.31x = 125,445.48 × 36,915.99 - Step 4: Simplify right side
83,630.31x = 4,630,944,085.23 - Step 5: Solve for x
x = 4,630,944,085.23/83,630.31 - Step 6: Final answer
x = 55,373.99
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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.