Finding the Fourth Proportional to 74,356.92, 102,610.26 and 40,363.80
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Solution
The fourth proportional to 74,356.92, 102,610.26 and 40,363.80 is: 55,700.80
Step by Step Solution
- Step 1: Write the proportion equation
74,356.92 : 102,610.26 = 40,363.80 : x - Step 2: Convert to fraction form
74,356.92/102,610.26 = 40,363.80/x - Step 3: Cross multiply
74,356.92x = 102,610.26 × 40,363.80 - Step 4: Simplify right side
74,356.92x = 4,141,740,012.59 - Step 5: Solve for x
x = 4,141,740,012.59/74,356.92 - Step 6: Final answer
x = 55,700.80
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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.