Finding the Fourth Proportional to 71,294.94, 106,909.41 and 40,130.18
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Solution
The fourth proportional to 71,294.94, 106,909.41 and 40,130.18 is: 60,176.70
Step by Step Solution
- Step 1: Write the proportion equation
71,294.94 : 106,909.41 = 40,130.18 : x - Step 2: Convert to fraction form
71,294.94/106,909.41 = 40,130.18/x - Step 3: Cross multiply
71,294.94x = 106,909.41 × 40,130.18 - Step 4: Simplify right side
71,294.94x = 4,290,293,866.99 - Step 5: Solve for x
x = 4,290,293,866.99/71,294.94 - Step 6: Final answer
x = 60,176.70
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.