Finding the Fourth Proportional to 77,027.13, 106,259.52 and 51,539.18
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Solution
The fourth proportional to 77,027.13, 106,259.52 and 51,539.18 is: 71,098.69
Step by Step Solution
- Step 1: Write the proportion equation
77,027.13 : 106,259.52 = 51,539.18 : x - Step 2: Convert to fraction form
77,027.13/106,259.52 = 51,539.18/x - Step 3: Cross multiply
77,027.13x = 106,259.52 × 51,539.18 - Step 4: Simplify right side
77,027.13x = 5,476,527,996.70 - Step 5: Solve for x
x = 5,476,527,996.70/77,027.13 - Step 6: Final answer
x = 71,098.69
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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.