Finding the Fourth Proportional to 83,129.58, 124,733.25 and 48,098.70
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Solution
The fourth proportional to 83,129.58, 124,733.25 and 48,098.70 is: 72,170.55
Step by Step Solution
- Step 1: Write the proportion equation
83,129.58 : 124,733.25 = 48,098.70 : x - Step 2: Convert to fraction form
83,129.58/124,733.25 = 48,098.70/x - Step 3: Cross multiply
83,129.58x = 124,733.25 × 48,098.70 - Step 4: Simplify right side
83,129.58x = 5,999,507,171.78 - Step 5: Solve for x
x = 5,999,507,171.78/83,129.58 - Step 6: Final answer
x = 72,170.55
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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.