Finding the Fourth Proportional to 77,037.89, 106,342.88 and 48,349.85
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Solution
The fourth proportional to 77,037.89, 106,342.88 and 48,349.85 is: 66,741.99
Step by Step Solution
- Step 1: Write the proportion equation
77,037.89 : 106,342.88 = 48,349.85 : x - Step 2: Convert to fraction form
77,037.89/106,342.88 = 48,349.85/x - Step 3: Cross multiply
77,037.89x = 106,342.88 × 48,349.85 - Step 4: Simplify right side
77,037.89x = 5,141,661,523.10 - Step 5: Solve for x
x = 5,141,661,523.10/77,037.89 - Step 6: Final answer
x = 66,741.99
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1.5x scale
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.