Finding the Fourth Proportional to 71,423.48, 107,157.43 and 29,306.99
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Solution
The fourth proportional to 71,423.48, 107,157.43 and 29,306.99 is: 43,969.59
Step by Step Solution
- Step 1: Write the proportion equation
71,423.48 : 107,157.43 = 29,306.99 : x - Step 2: Convert to fraction form
71,423.48/107,157.43 = 29,306.99/x - Step 3: Cross multiply
71,423.48x = 107,157.43 × 29,306.99 - Step 4: Simplify right side
71,423.48x = 3,140,461,280.51 - Step 5: Solve for x
x = 3,140,461,280.51/71,423.48 - Step 6: Final answer
x = 43,969.59
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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.