Finding the Fourth Proportional to 79,728.00, 119,665.81 and 40,312.79
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Solution
The fourth proportional to 79,728.00, 119,665.81 and 40,312.79 is: 60,506.50
Step by Step Solution
- Step 1: Write the proportion equation
79,728.00 : 119,665.81 = 40,312.79 : x - Step 2: Convert to fraction form
79,728.00/119,665.81 = 40,312.79/x - Step 3: Cross multiply
79,728.00x = 119,665.81 × 40,312.79 - Step 4: Simplify right side
79,728.00x = 4,824,062,342.76 - Step 5: Solve for x
x = 4,824,062,342.76/79,728.00 - Step 6: Final answer
x = 60,506.50
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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.