Finding the Fourth Proportional to 77,027.40, 106,240.95 and 48,705.75
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Solution
The fourth proportional to 77,027.40, 106,240.95 and 48,705.75 is: 67,177.98
Step by Step Solution
- Step 1: Write the proportion equation
77,027.40 : 106,240.95 = 48,705.75 : x - Step 2: Convert to fraction form
77,027.40/106,240.95 = 48,705.75/x - Step 3: Cross multiply
77,027.40x = 106,240.95 × 48,705.75 - Step 4: Simplify right side
77,027.40x = 5,174,545,150.46 - Step 5: Solve for x
x = 5,174,545,150.46/77,027.40 - Step 6: Final answer
x = 67,177.98
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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.