Finding the Fourth Proportional to 71,412.33, 106,967.80 and 57,295.93
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Solution
The fourth proportional to 71,412.33, 106,967.80 and 57,295.93 is: 85,822.99
Step by Step Solution
- Step 1: Write the proportion equation
71,412.33 : 106,967.80 = 57,295.93 : x - Step 2: Convert to fraction form
71,412.33/106,967.80 = 57,295.93/x - Step 3: Cross multiply
71,412.33x = 106,967.80 × 57,295.93 - Step 4: Simplify right side
71,412.33x = 6,128,819,581.05 - Step 5: Solve for x
x = 6,128,819,581.05/71,412.33 - Step 6: Final answer
x = 85,822.99
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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.