Finding the Fourth Proportional to 72,727.08, 100,359.68 and 40,894.08
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Solution
The fourth proportional to 72,727.08, 100,359.68 and 40,894.08 is: 56,431.76
Step by Step Solution
- Step 1: Write the proportion equation
72,727.08 : 100,359.68 = 40,894.08 : x - Step 2: Convert to fraction form
72,727.08/100,359.68 = 40,894.08/x - Step 3: Cross multiply
72,727.08x = 100,359.68 × 40,894.08 - Step 4: Simplify right side
72,727.08x = 4,104,116,782.69 - Step 5: Solve for x
x = 4,104,116,782.69/72,727.08 - Step 6: Final answer
x = 56,431.76
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.