Finding the Fourth Proportional to 97,731.81, 134,858.52 and 54,713.66
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Solution
The fourth proportional to 97,731.81, 134,858.52 and 54,713.66 is: 75,498.48
Step by Step Solution
- Step 1: Write the proportion equation
97,731.81 : 134,858.52 = 54,713.66 : x - Step 2: Convert to fraction form
97,731.81/134,858.52 = 54,713.66/x - Step 3: Cross multiply
97,731.81x = 134,858.52 × 54,713.66 - Step 4: Simplify right side
97,731.81x = 7,378,603,211.38 - Step 5: Solve for x
x = 7,378,603,211.38/97,731.81 - Step 6: Final answer
x = 75,498.48
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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.