Finding the Fourth Proportional to 97,072.88, 133,958.99 and 54,631.41
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Solution
The fourth proportional to 97,072.88, 133,958.99 and 54,631.41 is: 75,390.46
Step by Step Solution
- Step 1: Write the proportion equation
97,072.88 : 133,958.99 = 54,631.41 : x - Step 2: Convert to fraction form
97,072.88/133,958.99 = 54,631.41/x - Step 3: Cross multiply
97,072.88x = 133,958.99 × 54,631.41 - Step 4: Simplify right side
97,072.88x = 7,318,368,739.98 - Step 5: Solve for x
x = 7,318,368,739.98/97,072.88 - Step 6: Final answer
x = 75,390.46
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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.