Finding the Fourth Proportional to 97,831.68, 135,007.20 and 53,119.68
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Solution
The fourth proportional to 97,831.68, 135,007.20 and 53,119.68 is: 73,304.88
Step by Step Solution
- Step 1: Write the proportion equation
97,831.68 : 135,007.20 = 53,119.68 : x - Step 2: Convert to fraction form
97,831.68/135,007.20 = 53,119.68/x - Step 3: Cross multiply
97,831.68x = 135,007.20 × 53,119.68 - Step 4: Simplify right side
97,831.68x = 7,171,539,261.70 - Step 5: Solve for x
x = 7,171,539,261.70/97,831.68 - Step 6: Final answer
x = 73,304.88
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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.