Finding the Fourth Proportional to 74,893.05, 112,339.58 and 19,489.05
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Solution
The fourth proportional to 74,893.05, 112,339.58 and 19,489.05 is: 29,233.58
Step by Step Solution
- Step 1: Write the proportion equation
74,893.05 : 112,339.58 = 19,489.05 : x - Step 2: Convert to fraction form
74,893.05/112,339.58 = 19,489.05/x - Step 3: Cross multiply
74,893.05x = 112,339.58 × 19,489.05 - Step 4: Simplify right side
74,893.05x = 2,189,391,594.15 - Step 5: Solve for x
x = 2,189,391,594.15/74,893.05 - Step 6: Final answer
x = 29,233.58
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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.