Finding the Fourth Proportional to 77,831.12, 107,407.44 and 44,297.12
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Solution
The fourth proportional to 77,831.12, 107,407.44 and 44,297.12 is: 61,130.31
Step by Step Solution
- Step 1: Write the proportion equation
77,831.12 : 107,407.44 = 44,297.12 : x - Step 2: Convert to fraction form
77,831.12/107,407.44 = 44,297.12/x - Step 3: Cross multiply
77,831.12x = 107,407.44 × 44,297.12 - Step 4: Simplify right side
77,831.12x = 4,757,840,258.57 - Step 5: Solve for x
x = 4,757,840,258.57/77,831.12 - Step 6: Final answer
x = 61,130.31
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1.5x scale
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.