Finding the Fourth Proportional to 86,748.66, 119,711.16 and 48,508.74
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Solution
The fourth proportional to 86,748.66, 119,711.16 and 48,508.74 is: 66,940.95
Step by Step Solution
- Step 1: Write the proportion equation
86,748.66 : 119,711.16 = 48,508.74 : x - Step 2: Convert to fraction form
86,748.66/119,711.16 = 48,508.74/x - Step 3: Cross multiply
86,748.66x = 119,711.16 × 48,508.74 - Step 4: Simplify right side
86,748.66x = 5,807,037,535.54 - Step 5: Solve for x
x = 5,807,037,535.54/86,748.66 - Step 6: Final answer
x = 66,940.95
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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.