Finding the Fourth Proportional to 77,315.84, 106,703.39 and 43,330.09
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Solution
The fourth proportional to 77,315.84, 106,703.39 and 43,330.09 is: 59,799.74
Step by Step Solution
- Step 1: Write the proportion equation
77,315.84 : 106,703.39 = 43,330.09 : x - Step 2: Convert to fraction form
77,315.84/106,703.39 = 43,330.09/x - Step 3: Cross multiply
77,315.84x = 106,703.39 × 43,330.09 - Step 4: Simplify right side
77,315.84x = 4,623,467,097.63 - Step 5: Solve for x
x = 4,623,467,097.63/77,315.84 - Step 6: Final answer
x = 59,799.74
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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.