Finding the Fourth Proportional to 77,339.13, 106,727.99 and 43,805.13
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Solution
The fourth proportional to 77,339.13, 106,727.99 and 43,805.13 is: 60,451.07
Step by Step Solution
- Step 1: Write the proportion equation
77,339.13 : 106,727.99 = 43,805.13 : x - Step 2: Convert to fraction form
77,339.13/106,727.99 = 43,805.13/x - Step 3: Cross multiply
77,339.13x = 106,727.99 × 43,805.13 - Step 4: Simplify right side
77,339.13x = 4,675,233,476.59 - Step 5: Solve for x
x = 4,675,233,476.59/77,339.13 - Step 6: Final answer
x = 60,451.07
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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.