Finding the Fourth Proportional to 72,938.35, 109,363.77 and 33,445.99
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Solution
The fourth proportional to 72,938.35, 109,363.77 and 33,445.99 is: 50,148.92
Step by Step Solution
- Step 1: Write the proportion equation
72,938.35 : 109,363.77 = 33,445.99 : x - Step 2: Convert to fraction form
72,938.35/109,363.77 = 33,445.99/x - Step 3: Cross multiply
72,938.35x = 109,363.77 × 33,445.99 - Step 4: Simplify right side
72,938.35x = 3,657,779,557.78 - Step 5: Solve for x
x = 3,657,779,557.78/72,938.35 - Step 6: Final answer
x = 50,148.92
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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.