Finding the Fourth Proportional to 75,135.08, 103,686.45 and 46,840.88
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Solution
The fourth proportional to 75,135.08, 103,686.45 and 46,840.88 is: 64,640.44
Step by Step Solution
- Step 1: Write the proportion equation
75,135.08 : 103,686.45 = 46,840.88 : x - Step 2: Convert to fraction form
75,135.08/103,686.45 = 46,840.88/x - Step 3: Cross multiply
75,135.08x = 103,686.45 × 46,840.88 - Step 4: Simplify right side
75,135.08x = 4,856,764,562.08 - Step 5: Solve for x
x = 4,856,764,562.08/75,135.08 - Step 6: Final answer
x = 64,640.44
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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.