Finding the Fourth Proportional to 96,818.49, 145,670.60 and 57,403.28
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Solution
The fourth proportional to 96,818.49, 145,670.60 and 57,403.28 is: 86,367.50
Step by Step Solution
- Step 1: Write the proportion equation
96,818.49 : 145,670.60 = 57,403.28 : x - Step 2: Convert to fraction form
96,818.49/145,670.60 = 57,403.28/x - Step 3: Cross multiply
96,818.49x = 145,670.60 × 57,403.28 - Step 4: Simplify right side
96,818.49x = 8,361,970,747.25 - Step 5: Solve for x
x = 8,361,970,747.25/96,818.49 - Step 6: Final answer
x = 86,367.50
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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.