Finding the Fourth Proportional to 74,543.94, 102,866.04 and 40,552.14
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Solution
The fourth proportional to 74,543.94, 102,866.04 and 40,552.14 is: 55,959.45
Step by Step Solution
- Step 1: Write the proportion equation
74,543.94 : 102,866.04 = 40,552.14 : x - Step 2: Convert to fraction form
74,543.94/102,866.04 = 40,552.14/x - Step 3: Cross multiply
74,543.94x = 102,866.04 × 40,552.14 - Step 4: Simplify right side
74,543.94x = 4,171,438,055.33 - Step 5: Solve for x
x = 4,171,438,055.33/74,543.94 - Step 6: Final answer
x = 55,959.45
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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.