Finding the Fourth Proportional to 85,575.08, 128,377.92 and 29,400.68
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Solution
The fourth proportional to 85,575.08, 128,377.92 and 29,400.68 is: 44,106.28
Step by Step Solution
- Step 1: Write the proportion equation
85,575.08 : 128,377.92 = 29,400.68 : x - Step 2: Convert to fraction form
85,575.08/128,377.92 = 29,400.68/x - Step 3: Cross multiply
85,575.08x = 128,377.92 × 29,400.68 - Step 4: Simplify right side
85,575.08x = 3,774,398,144.99 - Step 5: Solve for x
x = 3,774,398,144.99/85,575.08 - Step 6: Final answer
x = 44,106.28
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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.