Finding the Fourth Proportional to 97,083.92, 133,980.12 and 54,645.20
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Solution
The fourth proportional to 97,083.92, 133,980.12 and 54,645.20 is: 75,412.80
Step by Step Solution
- Step 1: Write the proportion equation
97,083.92 : 133,980.12 = 54,645.20 : x - Step 2: Convert to fraction form
97,083.92/133,980.12 = 54,645.20/x - Step 3: Cross multiply
97,083.92x = 133,980.12 × 54,645.20 - Step 4: Simplify right side
97,083.92x = 7,321,370,453.42 - Step 5: Solve for x
x = 7,321,370,453.42/97,083.92 - Step 6: Final answer
x = 75,412.80
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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.