Finding the Fourth Proportional to 74,468.88, 102,767.58 and 40,477.32
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Solution
The fourth proportional to 74,468.88, 102,767.58 and 40,477.32 is: 55,858.99
Step by Step Solution
- Step 1: Write the proportion equation
74,468.88 : 102,767.58 = 40,477.32 : x - Step 2: Convert to fraction form
74,468.88/102,767.58 = 40,477.32/x - Step 3: Cross multiply
74,468.88x = 102,767.58 × 40,477.32 - Step 4: Simplify right side
74,468.88x = 4,159,756,221.29 - Step 5: Solve for x
x = 4,159,756,221.29/74,468.88 - Step 6: Final answer
x = 55,858.99
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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.