Finding the Fourth Proportional to 101,863.44, 140,564.88 and 56,539.26
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Solution
The fourth proportional to 101,863.44, 140,564.88 and 56,539.26 is: 78,020.48
Step by Step Solution
- Step 1: Write the proportion equation
101,863.44 : 140,564.88 = 56,539.26 : x - Step 2: Convert to fraction form
101,863.44/140,564.88 = 56,539.26/x - Step 3: Cross multiply
101,863.44x = 140,564.88 × 56,539.26 - Step 4: Simplify right side
101,863.44x = 7,947,434,297.19 - Step 5: Solve for x
x = 7,947,434,297.19/101,863.44 - Step 6: Final answer
x = 78,020.48
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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.