Finding the Fourth Proportional to 97,730.79, 134,859.06 and 54,708.09
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Solution
The fourth proportional to 97,730.79, 134,859.06 and 54,708.09 is: 75,491.89
Step by Step Solution
- Step 1: Write the proportion equation
97,730.79 : 134,859.06 = 54,708.09 : x - Step 2: Convert to fraction form
97,730.79/134,859.06 = 54,708.09/x - Step 3: Cross multiply
97,730.79x = 134,859.06 × 54,708.09 - Step 4: Simplify right side
97,730.79x = 7,377,881,591.80 - Step 5: Solve for x
x = 7,377,881,591.80/97,730.79 - Step 6: Final answer
x = 75,491.89
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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.