Finding the Fourth Proportional to 74,543.19, 102,783.51 and 59,424.09
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Solution
The fourth proportional to 74,543.19, 102,783.51 and 59,424.09 is: 81,936.61
Step by Step Solution
- Step 1: Write the proportion equation
74,543.19 : 102,783.51 = 59,424.09 : x - Step 2: Convert to fraction form
74,543.19/102,783.51 = 59,424.09/x - Step 3: Cross multiply
74,543.19x = 102,783.51 × 59,424.09 - Step 4: Simplify right side
74,543.19x = 6,107,816,548.76 - Step 5: Solve for x
x = 6,107,816,548.76/74,543.19 - Step 6: Final answer
x = 81,936.61
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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.