Finding the Fourth Proportional to 112,831.72, 169,249.98 and 37,954.12
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Solution
The fourth proportional to 112,831.72, 169,249.98 and 37,954.12 is: 56,931.99
Step by Step Solution
- Step 1: Write the proportion equation
112,831.72 : 169,249.98 = 37,954.12 : x - Step 2: Convert to fraction form
112,831.72/169,249.98 = 37,954.12/x - Step 3: Cross multiply
112,831.72x = 169,249.98 × 37,954.12 - Step 4: Simplify right side
112,831.72x = 6,423,734,050.92 - Step 5: Solve for x
x = 6,423,734,050.92/112,831.72 - Step 6: Final answer
x = 56,931.99
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1.5x scale
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.