Finding the Fourth Proportional to 97,712.42, 134,831.79 and 54,694.31
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Solution
The fourth proportional to 97,712.42, 134,831.79 and 54,694.31 is: 75,471.79
Step by Step Solution
- Step 1: Write the proportion equation
97,712.42 : 134,831.79 = 54,694.31 : x - Step 2: Convert to fraction form
97,712.42/134,831.79 = 54,694.31/x - Step 3: Cross multiply
97,712.42x = 134,831.79 × 54,694.31 - Step 4: Simplify right side
97,712.42x = 7,374,531,045.96 - Step 5: Solve for x
x = 7,374,531,045.96/97,712.42 - Step 6: Final answer
x = 75,471.79
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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.