Finding the Fourth Proportional to 86,337.74, 129,525.16 and 48,915.74
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Solution
The fourth proportional to 86,337.74, 129,525.16 and 48,915.74 is: 73,384.12
Step by Step Solution
- Step 1: Write the proportion equation
86,337.74 : 129,525.16 = 48,915.74 : x - Step 2: Convert to fraction form
86,337.74/129,525.16 = 48,915.74/x - Step 3: Cross multiply
86,337.74x = 129,525.16 × 48,915.74 - Step 4: Simplify right side
86,337.74x = 6,335,819,050.02 - Step 5: Solve for x
x = 6,335,819,050.02/86,337.74 - Step 6: Final answer
x = 73,384.12
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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.