Finding the Fourth Proportional to 77,024.40, 106,236.81 and 48,702.75
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Solution
The fourth proportional to 77,024.40, 106,236.81 and 48,702.75 is: 67,173.84
Step by Step Solution
- Step 1: Write the proportion equation
77,024.40 : 106,236.81 = 48,702.75 : x - Step 2: Convert to fraction form
77,024.40/106,236.81 = 48,702.75/x - Step 3: Cross multiply
77,024.40x = 106,236.81 × 48,702.75 - Step 4: Simplify right side
77,024.40x = 5,174,024,798.23 - Step 5: Solve for x
x = 5,174,024,798.23/77,024.40 - Step 6: Final answer
x = 67,173.84
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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.