Finding the Fourth Proportional to 90,423.24, 135,609.36 and 27,226.26
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Solution
The fourth proportional to 90,423.24, 135,609.36 and 27,226.26 is: 40,831.71
Step by Step Solution
- Step 1: Write the proportion equation
90,423.24 : 135,609.36 = 27,226.26 : x - Step 2: Convert to fraction form
90,423.24/135,609.36 = 27,226.26/x - Step 3: Cross multiply
90,423.24x = 135,609.36 × 27,226.26 - Step 4: Simplify right side
90,423.24x = 3,692,135,693.79 - Step 5: Solve for x
x = 3,692,135,693.79/90,423.24 - Step 6: Final answer
x = 40,831.71
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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.