Finding the Fourth Proportional to 96,988.70, 133,824.36 and 56,694.68
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Solution
The fourth proportional to 96,988.70, 133,824.36 and 56,694.68 is: 78,226.94
Step by Step Solution
- Step 1: Write the proportion equation
96,988.70 : 133,824.36 = 56,694.68 : x - Step 2: Convert to fraction form
96,988.70/133,824.36 = 56,694.68/x - Step 3: Cross multiply
96,988.70x = 133,824.36 × 56,694.68 - Step 4: Simplify right side
96,988.70x = 7,587,129,266.40 - Step 5: Solve for x
x = 7,587,129,266.40/96,988.70 - Step 6: Final answer
x = 78,226.94
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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.