Finding the Fourth Proportional to 71,294.68, 107,135.88 and 38,038.24
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Solution
The fourth proportional to 71,294.68, 107,135.88 and 38,038.24 is: 57,160.79
Step by Step Solution
- Step 1: Write the proportion equation
71,294.68 : 107,135.88 = 38,038.24 : x - Step 2: Convert to fraction form
71,294.68/107,135.88 = 38,038.24/x - Step 3: Cross multiply
71,294.68x = 107,135.88 × 38,038.24 - Step 4: Simplify right side
71,294.68x = 4,075,260,316.05 - Step 5: Solve for x
x = 4,075,260,316.05/71,294.68 - Step 6: Final answer
x = 57,160.79
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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.