Finding the Fourth Proportional to 87,888.21, 131,655.98 and 40,437.19
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Solution
The fourth proportional to 87,888.21, 131,655.98 and 40,437.19 is: 60,574.66
Step by Step Solution
- Step 1: Write the proportion equation
87,888.21 : 131,655.98 = 40,437.19 : x - Step 2: Convert to fraction form
87,888.21/131,655.98 = 40,437.19/x - Step 3: Cross multiply
87,888.21x = 131,655.98 × 40,437.19 - Step 4: Simplify right side
87,888.21x = 5,323,798,466.23 - Step 5: Solve for x
x = 5,323,798,466.23/87,888.21 - Step 6: Final answer
x = 60,574.66
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.