Finding the Fourth Proportional to 76,673.76, 115,011.12 and 26,753.68
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Solution
The fourth proportional to 76,673.76, 115,011.12 and 26,753.68 is: 40,130.69
Step by Step Solution
- Step 1: Write the proportion equation
76,673.76 : 115,011.12 = 26,753.68 : x - Step 2: Convert to fraction form
76,673.76/115,011.12 = 26,753.68/x - Step 3: Cross multiply
76,673.76x = 115,011.12 × 26,753.68 - Step 4: Simplify right side
76,673.76x = 3,076,970,700.92 - Step 5: Solve for x
x = 3,076,970,700.92/76,673.76 - Step 6: Final answer
x = 40,130.69
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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.