Finding the Fourth Proportional to 67,781.83, 101,688.85 and 23,408.95
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Solution
The fourth proportional to 67,781.83, 101,688.85 and 23,408.95 is: 35,118.99
Step by Step Solution
- Step 1: Write the proportion equation
67,781.83 : 101,688.85 = 23,408.95 : x - Step 2: Convert to fraction form
67,781.83/101,688.85 = 23,408.95/x - Step 3: Cross multiply
67,781.83x = 101,688.85 × 23,408.95 - Step 4: Simplify right side
67,781.83x = 2,380,429,205.21 - Step 5: Solve for x
x = 2,380,429,205.21/67,781.83 - Step 6: Final answer
x = 35,118.99
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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.