Finding the Fourth Proportional to 85,532.08, 128,261.42 and 29,377.84
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Solution
The fourth proportional to 85,532.08, 128,261.42 and 29,377.84 is: 44,054.15
Step by Step Solution
- Step 1: Write the proportion equation
85,532.08 : 128,261.42 = 29,377.84 : x - Step 2: Convert to fraction form
85,532.08/128,261.42 = 29,377.84/x - Step 3: Cross multiply
85,532.08x = 128,261.42 × 29,377.84 - Step 4: Simplify right side
85,532.08x = 3,768,043,474.93 - Step 5: Solve for x
x = 3,768,043,474.93/85,532.08 - Step 6: Final answer
x = 44,054.15
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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.